diff options
| author | Yishai Hadas <yishaih@mellanox.com> | 2015-01-25 16:59:35 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-25 14:43:13 -0800 |
| commit | 872bf2fb69d90e3619befee842fc26db39d8e475 (patch) | |
| tree | cd57553d6b75b48bf75a9aa6c4358fbed88e7b4a /drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | |
| parent | 7aee42c6764bae75d0eb2f674f0874193de90c05 (diff) | |
| download | linux-872bf2fb69d90e3619befee842fc26db39d8e475.tar.bz2 | |
net/mlx4_core: Maintain a persistent memory for mlx4 device
Maintain a persistent memory that should survive reset flow/PCI error.
This comes as a preparation for coming series to support above flows.
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/resource_tracker.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 4efbd1eca611..3e93879bccce 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -309,12 +309,13 @@ static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave, int allocated, free, reserved, guaranteed, from_free; int from_rsvd; - if (slave > dev->num_vfs) + if (slave > dev->persist->num_vfs) return -EINVAL; spin_lock(&res_alloc->alloc_lock); allocated = (port > 0) ? - res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] : + res_alloc->allocated[(port - 1) * + (dev->persist->num_vfs + 1) + slave] : res_alloc->allocated[slave]; free = (port > 0) ? res_alloc->res_port_free[port - 1] : res_alloc->res_free; @@ -352,7 +353,8 @@ static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave, if (!err) { /* grant the request */ if (port > 0) { - res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] += count; + res_alloc->allocated[(port - 1) * + (dev->persist->num_vfs + 1) + slave] += count; res_alloc->res_port_free[port - 1] -= count; res_alloc->res_port_rsvd[port - 1] -= from_rsvd; } else { @@ -376,13 +378,14 @@ static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave, &priv->mfunc.master.res_tracker.res_alloc[res_type]; int allocated, guaranteed, from_rsvd; - if (slave > dev->num_vfs) + if (slave > dev->persist->num_vfs) return; spin_lock(&res_alloc->alloc_lock); allocated = (port > 0) ? - res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] : + res_alloc->allocated[(port - 1) * + (dev->persist->num_vfs + 1) + slave] : res_alloc->allocated[slave]; guaranteed = res_alloc->guaranteed[slave]; @@ -397,7 +400,8 @@ static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave, } if (port > 0) { - res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] -= count; + res_alloc->allocated[(port - 1) * + (dev->persist->num_vfs + 1) + slave] -= count; res_alloc->res_port_free[port - 1] += count; res_alloc->res_port_rsvd[port - 1] += from_rsvd; } else { @@ -415,7 +419,8 @@ static inline void initialize_res_quotas(struct mlx4_dev *dev, enum mlx4_resource res_type, int vf, int num_instances) { - res_alloc->guaranteed[vf] = num_instances / (2 * (dev->num_vfs + 1)); + res_alloc->guaranteed[vf] = num_instances / + (2 * (dev->persist->num_vfs + 1)); res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf]; if (vf == mlx4_master_func_num(dev)) { res_alloc->res_free = num_instances; @@ -486,21 +491,26 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev) for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { struct resource_allocator *res_alloc = &priv->mfunc.master.res_tracker.res_alloc[i]; - res_alloc->quota = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL); - res_alloc->guaranteed = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL); + res_alloc->quota = kmalloc((dev->persist->num_vfs + 1) * + sizeof(int), GFP_KERNEL); + res_alloc->guaranteed = kmalloc((dev->persist->num_vfs + 1) * + sizeof(int), GFP_KERNEL); if (i == RES_MAC || i == RES_VLAN) res_alloc->allocated = kzalloc(MLX4_MAX_PORTS * - (dev->num_vfs + 1) * sizeof(int), - GFP_KERNEL); + (dev->persist->num_vfs + + 1) * + sizeof(int), GFP_KERNEL); else - res_alloc->allocated = kzalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL); + res_alloc->allocated = kzalloc((dev->persist-> + num_vfs + 1) * + sizeof(int), GFP_KERNEL); if (!res_alloc->quota || !res_alloc->guaranteed || !res_alloc->allocated) goto no_mem_err; spin_lock_init(&res_alloc->alloc_lock); - for (t = 0; t < dev->num_vfs + 1; t++) { + for (t = 0; t < dev->persist->num_vfs + 1; t++) { struct mlx4_active_ports actv_ports = mlx4_get_active_ports(dev, t); switch (i) { |