diff options
Diffstat (limited to 'drivers/net/mlx4/en_params.c')
| -rw-r--r-- | drivers/net/mlx4/en_params.c | 113 |
1 files changed, 58 insertions, 55 deletions
diff --git a/drivers/net/mlx4/en_params.c b/drivers/net/mlx4/en_params.c index 95706ee1c01..c1bd040b9e0 100644 --- a/drivers/net/mlx4/en_params.c +++ b/drivers/net/mlx4/en_params.c @@ -60,49 +60,26 @@ MLX4_EN_PARM_INT(num_lro, MLX4_EN_MAX_LRO_DESCRIPTORS, "Number of LRO sessions per ring or disabled (0)"); /* Priority pausing */ -MLX4_EN_PARM_INT(pptx, MLX4_EN_DEF_TX_PAUSE, - "Pause policy on TX: 0 never generate pause frames " - "1 generate pause frames according to RX buffer threshold"); -MLX4_EN_PARM_INT(pprx, MLX4_EN_DEF_RX_PAUSE, - "Pause policy on RX: 0 ignore received pause frames " - "1 respect received pause frames"); MLX4_EN_PARM_INT(pfctx, 0, "Priority based Flow Control policy on TX[7:0]." " Per priority bit mask"); MLX4_EN_PARM_INT(pfcrx, 0, "Priority based Flow Control policy on RX[7:0]." " Per priority bit mask"); -/* Interrupt moderation tunning */ -MLX4_EN_PARM_INT(rx_moder_cnt, MLX4_EN_AUTO_CONF, - "Max coalesced descriptors for Rx interrupt moderation"); -MLX4_EN_PARM_INT(rx_moder_time, MLX4_EN_AUTO_CONF, - "Timeout following last packet for Rx interrupt moderation"); -MLX4_EN_PARM_INT(auto_moder, 1, "Enable dynamic interrupt moderation"); - -MLX4_EN_PARM_INT(rx_ring_num1, 0, "Number or Rx rings for port 1 (0 = #cores)"); -MLX4_EN_PARM_INT(rx_ring_num2, 0, "Number or Rx rings for port 2 (0 = #cores)"); - -MLX4_EN_PARM_INT(tx_ring_size1, MLX4_EN_AUTO_CONF, "Tx ring size for port 1"); -MLX4_EN_PARM_INT(tx_ring_size2, MLX4_EN_AUTO_CONF, "Tx ring size for port 2"); -MLX4_EN_PARM_INT(rx_ring_size1, MLX4_EN_AUTO_CONF, "Rx ring size for port 1"); -MLX4_EN_PARM_INT(rx_ring_size2, MLX4_EN_AUTO_CONF, "Rx ring size for port 2"); - - int mlx4_en_get_profile(struct mlx4_en_dev *mdev) { struct mlx4_en_profile *params = &mdev->profile; int i; - params->rx_moder_cnt = min_t(int, rx_moder_cnt, MLX4_EN_AUTO_CONF); - params->rx_moder_time = min_t(int, rx_moder_time, MLX4_EN_AUTO_CONF); - params->auto_moder = auto_moder; params->rss_xor = (rss_xor != 0); params->rss_mask = rss_mask & 0x1f; params->num_lro = min_t(int, num_lro , MLX4_EN_MAX_LRO_DESCRIPTORS); for (i = 1; i <= MLX4_MAX_PORTS; i++) { - params->prof[i].rx_pause = pprx; + params->prof[i].rx_pause = 1; params->prof[i].rx_ppp = pfcrx; - params->prof[i].tx_pause = pptx; + params->prof[i].tx_pause = 1; params->prof[i].tx_ppp = pfctx; + params->prof[i].tx_ring_size = MLX4_EN_DEF_TX_RING_SIZE; + params->prof[i].rx_ring_size = MLX4_EN_DEF_RX_RING_SIZE; } if (pfcrx || pfctx) { params->prof[1].tx_ring_num = MLX4_EN_TX_RING_NUM; @@ -111,32 +88,7 @@ int mlx4_en_get_profile(struct mlx4_en_dev *mdev) params->prof[1].tx_ring_num = 1; params->prof[2].tx_ring_num = 1; } - params->prof[1].rx_ring_num = min_t(int, rx_ring_num1, MAX_RX_RINGS); - params->prof[2].rx_ring_num = min_t(int, rx_ring_num2, MAX_RX_RINGS); - - if (tx_ring_size1 == MLX4_EN_AUTO_CONF) - tx_ring_size1 = MLX4_EN_DEF_TX_RING_SIZE; - params->prof[1].tx_ring_size = - (tx_ring_size1 < MLX4_EN_MIN_TX_SIZE) ? - MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size1); - - if (tx_ring_size2 == MLX4_EN_AUTO_CONF) - tx_ring_size2 = MLX4_EN_DEF_TX_RING_SIZE; - params->prof[2].tx_ring_size = - (tx_ring_size2 < MLX4_EN_MIN_TX_SIZE) ? - MLX4_EN_MIN_TX_SIZE : roundup_pow_of_two(tx_ring_size2); - - if (rx_ring_size1 == MLX4_EN_AUTO_CONF) - rx_ring_size1 = MLX4_EN_DEF_RX_RING_SIZE; - params->prof[1].rx_ring_size = - (rx_ring_size1 < MLX4_EN_MIN_RX_SIZE) ? - MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size1); - - if (rx_ring_size2 == MLX4_EN_AUTO_CONF) - rx_ring_size2 = MLX4_EN_DEF_RX_RING_SIZE; - params->prof[2].rx_ring_size = - (rx_ring_size2 < MLX4_EN_MIN_RX_SIZE) ? - MLX4_EN_MIN_RX_SIZE : roundup_pow_of_two(rx_ring_size2); + return 0; } @@ -433,6 +385,56 @@ static void mlx4_en_get_pauseparam(struct net_device *dev, pause->rx_pause = priv->prof->rx_pause; } +static int mlx4_en_set_ringparam(struct net_device *dev, + struct ethtool_ringparam *param) +{ + struct mlx4_en_priv *priv = netdev_priv(dev); + struct mlx4_en_dev *mdev = priv->mdev; + u32 rx_size, tx_size; + int port_up = 0; + int err = 0; + + if (param->rx_jumbo_pending || param->rx_mini_pending) + return -EINVAL; + + rx_size = roundup_pow_of_two(param->rx_pending); + rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE); + rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE); + tx_size = roundup_pow_of_two(param->tx_pending); + tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE); + tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE); + + if (rx_size == priv->prof->rx_ring_size && + tx_size == priv->prof->tx_ring_size) + return 0; + + mutex_lock(&mdev->state_lock); + if (priv->port_up) { + port_up = 1; + mlx4_en_stop_port(dev); + } + + mlx4_en_free_resources(priv); + + priv->prof->tx_ring_size = tx_size; + priv->prof->rx_ring_size = rx_size; + + err = mlx4_en_alloc_resources(priv); + if (err) { + mlx4_err(mdev, "Failed reallocating port resources\n"); + goto out; + } + if (port_up) { + err = mlx4_en_start_port(dev); + if (err) + mlx4_err(mdev, "Failed starting port\n"); + } + +out: + mutex_unlock(&mdev->state_lock); + return err; +} + static void mlx4_en_get_ringparam(struct net_device *dev, struct ethtool_ringparam *param) { @@ -440,8 +442,8 @@ static void mlx4_en_get_ringparam(struct net_device *dev, struct mlx4_en_dev *mdev = priv->mdev; memset(param, 0, sizeof(*param)); - param->rx_max_pending = mdev->dev->caps.max_rq_sg; - param->tx_max_pending = mdev->dev->caps.max_sq_sg; + param->rx_max_pending = MLX4_EN_MAX_RX_SIZE; + param->tx_max_pending = MLX4_EN_MAX_TX_SIZE; param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size; param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size; } @@ -472,6 +474,7 @@ const struct ethtool_ops mlx4_en_ethtool_ops = { .get_pauseparam = mlx4_en_get_pauseparam, .set_pauseparam = mlx4_en_set_pauseparam, .get_ringparam = mlx4_en_get_ringparam, + .set_ringparam = mlx4_en_set_ringparam, .get_flags = ethtool_op_get_flags, .set_flags = ethtool_op_set_flags, }; |