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Merge branch 'mlx5-fixes'

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Or Gerlitz says:

====================
Mellanox mlx5e driver update, Nov 3 2015

This series contains bunch of small fixes to the mlx5e driver from Achiad.

Changes from V0:
  - removed the driver patch that dealt with IRQ affinity changes during
    NAPI poll, as this is a generic problem which needs generic solution.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-11-03 10:41:51 -05:00
commit 0561e8e878
5 changed files with 46 additions and 15 deletions
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6
drivers/net/ethernet/mellanox/mlx5/core/en.h
View File

@ -617,5 +617,11 @@ static inline void mlx5e_cq_arm(struct mlx5e_cq *cq)
mlx5_cq_arm(mcq, MLX5_CQ_DB_REQ_NOT, mcq->uar->map, NULL, cq->wq.cc);
}
static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
{
return min_t(int, mdev->priv.eq_table.num_comp_vectors,
MLX5E_MAX_NUM_CHANNELS);
}
extern const struct ethtool_ops mlx5e_ethtool_ops;
u16 mlx5e_get_max_inline_cap(struct mlx5_core_dev *mdev);

5
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -345,9 +345,8 @@ static void mlx5e_get_channels(struct net_device *dev,
struct ethtool_channels *ch)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int ncv = priv->mdev->priv.eq_table.num_comp_vectors;
ch->max_combined = ncv;
ch->max_combined = mlx5e_get_max_num_channels(priv->mdev);
ch->combined_count = priv->params.num_channels;
}
@ -355,7 +354,7 @@ static int mlx5e_set_channels(struct net_device *dev,
struct ethtool_channels *ch)
{
struct mlx5e_priv *priv = netdev_priv(dev);
int ncv = priv->mdev->priv.eq_table.num_comp_vectors;
int ncv = mlx5e_get_max_num_channels(priv->mdev);
unsigned int count = ch->combined_count;
bool was_opened;
int err = 0;

16
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -442,12 +442,12 @@ static void mlx5e_disable_rq(struct mlx5e_rq *rq)
static int mlx5e_wait_for_min_rx_wqes(struct mlx5e_rq *rq)
{
unsigned long exp_time = jiffies + msecs_to_jiffies(20000);
struct mlx5e_channel *c = rq->channel;
struct mlx5e_priv *priv = c->priv;
struct mlx5_wq_ll *wq = &rq->wq;
int i;
for (i = 0; i < 1000; i++) {
while (time_before(jiffies, exp_time)) {
if (wq->cur_sz >= priv->params.min_rx_wqes)
return 0;
@ -1404,6 +1404,12 @@ int mlx5e_close_locked(struct net_device *netdev)
{
struct mlx5e_priv *priv = netdev_priv(netdev);
/* May already be CLOSED in case a previous configuration operation
* (e.g RX/TX queue size change) that involves close&open failed.
*/
if (!test_bit(MLX5E_STATE_OPENED, &priv->state))
return 0;
clear_bit(MLX5E_STATE_OPENED, &priv->state);
mlx5e_redirect_rqts(priv);
@ -1837,7 +1843,7 @@ static int mlx5e_set_features(struct net_device *netdev,
mlx5e_disable_vlan_filter(priv);
}
return 0;
return err;
}
static int mlx5e_change_mtu(struct net_device *netdev, int new_mtu)
@ -1998,6 +2004,7 @@ static void mlx5e_build_netdev(struct net_device *netdev)
netdev->vlan_features |= NETIF_F_LRO;
netdev->hw_features = netdev->vlan_features;
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
@ -2041,8 +2048,7 @@ static void *mlx5e_create_netdev(struct mlx5_core_dev *mdev)
{
struct net_device *netdev;
struct mlx5e_priv *priv;
int nch = min_t(int, mdev->priv.eq_table.num_comp_vectors,
MLX5E_MAX_NUM_CHANNELS);
int nch = mlx5e_get_max_num_channels(mdev);
int err;
if (mlx5e_check_required_hca_cap(mdev))

26
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View File

@ -116,7 +116,7 @@ static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq,
* headers and occur before the data gather.
* Therefore these headers must be copied into the WQE
*/
#define MLX5E_MIN_INLINE (ETH_HLEN + 2/*vlan tag*/)
#define MLX5E_MIN_INLINE ETH_HLEN
if (bf && (skb_headlen(skb) <= sq->max_inline))
return skb_headlen(skb);
@ -124,6 +124,21 @@ static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq,
return MLX5E_MIN_INLINE;
}
static inline void mlx5e_insert_vlan(void *start, struct sk_buff *skb, u16 ihs)
{
struct vlan_ethhdr *vhdr = (struct vlan_ethhdr *)start;
int cpy1_sz = 2 * ETH_ALEN;
int cpy2_sz = ihs - cpy1_sz;
skb_copy_from_linear_data(skb, vhdr, cpy1_sz);
skb_pull_inline(skb, cpy1_sz);
vhdr->h_vlan_proto = skb->vlan_proto;
vhdr->h_vlan_TCI = cpu_to_be16(skb_vlan_tag_get(skb));
skb_copy_from_linear_data(skb, &vhdr->h_vlan_encapsulated_proto,
cpy2_sz);
skb_pull_inline(skb, cpy2_sz);
}
static netdev_tx_t mlx5e_sq_xmit(struct mlx5e_sq *sq, struct sk_buff *skb)
{
struct mlx5_wq_cyc *wq = &sq->wq;
@ -175,8 +190,13 @@ static netdev_tx_t mlx5e_sq_xmit(struct mlx5e_sq *sq, struct sk_buff *skb)
ETH_ZLEN);
}
skb_copy_from_linear_data(skb, eseg->inline_hdr_start, ihs);
skb_pull_inline(skb, ihs);
if (skb_vlan_tag_present(skb)) {
mlx5e_insert_vlan(eseg->inline_hdr_start, skb, ihs);
ihs += VLAN_HLEN;
} else {
skb_copy_from_linear_data(skb, eseg->inline_hdr_start, ihs);
skb_pull_inline(skb, ihs);
}
eseg->inline_hdr_sz = cpu_to_be16(ihs);

8
drivers/net/ethernet/mellanox/mlx5/core/eq.c
View File

@ -382,10 +382,10 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
name, pci_name(dev->pdev));
eq->eqn = out.eq_number;
eq->irqn = vecidx;
eq->irqn = priv->msix_arr[vecidx].vector;
eq->dev = dev;
eq->doorbell = uar->map + MLX5_EQ_DOORBEL_OFFSET;
err = request_irq(priv->msix_arr[vecidx].vector, mlx5_msix_handler, 0,
err = request_irq(eq->irqn, mlx5_msix_handler, 0,
priv->irq_info[vecidx].name, eq);
if (err)
goto err_eq;
@ -421,12 +421,12 @@ int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq)
int err;
mlx5_debug_eq_remove(dev, eq);
free_irq(dev->priv.msix_arr[eq->irqn].vector, eq);
free_irq(eq->irqn, eq);
err = mlx5_cmd_destroy_eq(dev, eq->eqn);
if (err)
mlx5_core_warn(dev, "failed to destroy a previously created eq: eqn %d\n",
eq->eqn);
synchronize_irq(dev->priv.msix_arr[eq->irqn].vector);
synchronize_irq(eq->irqn);
mlx5_buf_free(dev, &eq->buf);
return err;