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Merge branch 'mlx4'

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Or Gerlitz says:

====================
mlx4 driver fixes for 3.19-rc1

Just fixes for two small issues introduced in the 3.19 merge window
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-12-15 11:35:00 -05:00
commit c5e44b6985
3 changed files with 49 additions and 38 deletions
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26
drivers/net/ethernet/mellanox/mlx4/fw.c
View File

@ -787,11 +787,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
if ((1 << (field & 0x3f)) > (PAGE_SIZE / dev_cap->bf_reg_size))
field = 3;
dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
} else {
dev_cap->bf_reg_size = 0;
mlx4_dbg(dev, "BlueFlame not available\n");
}
MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
@ -902,9 +899,6 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
goto out;
}
mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
dev_cap->bmme_flags, dev_cap->reserved_lkey);
/*
* Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
* we can't use any EQs whose doorbell falls on that page,
@ -916,6 +910,21 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
else
dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_SYS_EQS;
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
{
if (dev_cap->bf_reg_size > 0)
mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
else
mlx4_dbg(dev, "BlueFlame not available\n");
mlx4_dbg(dev, "Base MM extensions: flags %08x, rsvd L_Key %08x\n",
dev_cap->bmme_flags, dev_cap->reserved_lkey);
mlx4_dbg(dev, "Max ICM size %lld MB\n",
(unsigned long long) dev_cap->max_icm_sz >> 20);
mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
@ -949,13 +958,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev_cap->dmfs_high_rate_qpn_base);
mlx4_dbg(dev, "DMFS high rate steer QPn range: %d\n",
dev_cap->dmfs_high_rate_qpn_range);
dump_dev_cap_flags(dev, dev_cap->flags);
dump_dev_cap_flags2(dev, dev_cap->flags2);
out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap)

1
drivers/net/ethernet/mellanox/mlx4/fw.h
View File

@ -224,6 +224,7 @@ struct mlx4_set_ib_param {
u32 cap_mask;
};
void mlx4_dev_cap_dump(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap);
int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap);
int mlx4_QUERY_PORT(struct mlx4_dev *dev, int port, struct mlx4_port_cap *port_cap);
int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u8 gen_or_port,

34
drivers/net/ethernet/mellanox/mlx4/main.c
View File

@ -305,6 +305,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting\n");
return err;
}
mlx4_dev_cap_dump(dev, dev_cap);
if (dev_cap->min_page_sz > PAGE_SIZE) {
mlx4_err(dev, "HCA minimum page size of %d bigger than kernel PAGE_SIZE of %ld, aborting\n",
@ -2488,29 +2489,30 @@ static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
u8 total_vfs, int existing_vfs)
{
u64 dev_flags = dev->flags;
dev->dev_vfs = kzalloc(
total_vfs * sizeof(*dev->dev_vfs),
GFP_KERNEL);
if (NULL == dev->dev_vfs) {
mlx4_err(dev, "Failed to allocate memory for VFs\n");
goto disable_sriov;
} else if (!(dev->flags & MLX4_FLAG_SRIOV)) {
int err = 0;
atomic_inc(&pf_loading);
if (existing_vfs) {
if (existing_vfs != total_vfs)
if (dev->flags & MLX4_FLAG_SRIOV) {
if (existing_vfs != total_vfs) {
mlx4_err(dev, "SR-IOV was already enabled, but with num_vfs (%d) different than requested (%d)\n",
existing_vfs, total_vfs);
} else {
total_vfs = existing_vfs;
}
}
dev->dev_vfs = kzalloc(total_vfs * sizeof(*dev->dev_vfs), GFP_KERNEL);
if (NULL == dev->dev_vfs) {
mlx4_err(dev, "Failed to allocate memory for VFs\n");
goto disable_sriov;
}
if (!(dev->flags & MLX4_FLAG_SRIOV)) {
mlx4_warn(dev, "Enabling SR-IOV with %d VFs\n", total_vfs);
err = pci_enable_sriov(pdev, total_vfs);
}
if (err) {
mlx4_err(dev, "Failed to enable SR-IOV, continuing without SR-IOV (err = %d)\n",
err);
atomic_dec(&pf_loading);
goto disable_sriov;
} else {
mlx4_warn(dev, "Running in master mode\n");
@ -2519,10 +2521,10 @@ static u64 mlx4_enable_sriov(struct mlx4_dev *dev, struct pci_dev *pdev,
dev_flags &= ~MLX4_FLAG_SLAVE;
dev->num_vfs = total_vfs;
}
}
return dev_flags;
disable_sriov:
atomic_dec(&pf_loading);
dev->num_vfs = 0;
kfree(dev->dev_vfs);
return dev_flags & ~MLX4_FLAG_MASTER;
@ -2606,8 +2608,10 @@ static int mlx4_load_one(struct pci_dev *pdev, int pci_dev_data,
}
if (total_vfs) {
existing_vfs = pci_num_vf(pdev);
dev->flags = MLX4_FLAG_MASTER;
existing_vfs = pci_num_vf(pdev);
if (existing_vfs)
dev->flags |= MLX4_FLAG_SRIOV;
dev->num_vfs = total_vfs;
}
}
@ -2643,6 +2647,7 @@ slave_start:
}
if (mlx4_is_master(dev)) {
/* when we hit the goto slave_start below, dev_cap already initialized */
if (!dev_cap) {
dev_cap = kzalloc(sizeof(*dev_cap), GFP_KERNEL);
@ -2849,6 +2854,7 @@ slave_start:
if (mlx4_is_master(dev) && dev->num_vfs)
atomic_dec(&pf_loading);
kfree(dev_cap);
return 0;
err_port: