diff options
Diffstat (limited to 'drivers/net/mlx4/en_main.c')
| -rw-r--r-- | drivers/net/mlx4/en_main.c | 68 |
1 files changed, 50 insertions, 18 deletions
diff --git a/drivers/net/mlx4/en_main.c b/drivers/net/mlx4/en_main.c index 510633fd57f6..9ed4a158f895 100644 --- a/drivers/net/mlx4/en_main.c +++ b/drivers/net/mlx4/en_main.c @@ -51,6 +51,55 @@ static const char mlx4_en_version[] = DRV_NAME ": Mellanox ConnectX HCA Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n"; +#define MLX4_EN_PARM_INT(X, def_val, desc) \ + static unsigned int X = def_val;\ + module_param(X , uint, 0444); \ + MODULE_PARM_DESC(X, desc); + + +/* + * Device scope module parameters + */ + + +/* Use a XOR rathern than Toeplitz hash function for RSS */ +MLX4_EN_PARM_INT(rss_xor, 0, "Use XOR hash function for RSS"); + +/* RSS hash type mask - default to <saddr, daddr, sport, dport> */ +MLX4_EN_PARM_INT(rss_mask, 0xf, "RSS hash type bitmask"); + +/* Number of LRO sessions per Rx ring (rounded up to a power of two) */ +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(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"); + +static int mlx4_en_get_profile(struct mlx4_en_dev *mdev) +{ + struct mlx4_en_profile *params = &mdev->profile; + int i; + + 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 = 1; + params->prof[i].rx_ppp = pfcrx; + 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; + params->prof[i].tx_ring_num = MLX4_EN_NUM_TX_RINGS + + (!!pfcrx) * MLX4_EN_NUM_PPP_RINGS; + } + + return 0; +} + static void mlx4_en_event(struct mlx4_dev *dev, void *endev_ptr, enum mlx4_dev_event event, int port) { @@ -194,28 +243,11 @@ static void *mlx4_en_add(struct mlx4_dev *dev) /* Create a netdev for each port */ mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { mlx4_info(mdev, "Activating port:%d\n", i); - if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i])) { + if (mlx4_en_init_netdev(mdev, i, &mdev->profile.prof[i])) mdev->pndev[i] = NULL; - goto err_free_netdev; - } } return mdev; - -err_free_netdev: - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) { - if (mdev->pndev[i]) - mlx4_en_destroy_netdev(mdev->pndev[i]); - } - - mutex_lock(&mdev->state_lock); - mdev->device_up = false; - mutex_unlock(&mdev->state_lock); - flush_workqueue(mdev->workqueue); - - /* Stop event queue before we drop down to release shared SW state */ - destroy_workqueue(mdev->workqueue); - err_mr: mlx4_mr_free(dev, &mdev->mr); err_uar: |