{net, RDMA}/mlx5: Fix override of log_max_qp by other device

mlx5_core_dev holds pointer to static profile, hence when the
log_max_qp of the profile is override by some device, then it
effect all other mlx5 devices that share the same profile.
Fix it by having a profile instance for every mlx5 device.

Fixes: 883371c453b9 ("net/mlx5: Check FW limitations on log_max_qp before setting it")
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 4388afe..9662cd3 100644 (file)
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -743,10 +743,10 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
                ent->xlt = (1 << ent->order) * sizeof(struct mlx5_mtt) /
                           MLX5_IB_UMR_OCTOWORD;
                ent->access_mode = MLX5_MKC_ACCESS_MODE_MTT;
-               if ((dev->mdev->profile->mask & MLX5_PROF_MASK_MR_CACHE) &&
+               if ((dev->mdev->profile.mask & MLX5_PROF_MASK_MR_CACHE) &&
                    !dev->is_rep && mlx5_core_is_pf(dev->mdev) &&
                    mlx5_ib_can_load_pas_with_umr(dev, 0))
-                       ent->limit = dev->mdev->profile->mr_cache[i].limit;
+                       ent->limit = dev->mdev->profile.mr_cache[i].limit;
                else
                        ent->limit = 0;
                spin_lock_irq(&ent->lock);

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index c114365..a1d67bd 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -503,7 +503,7 @@ static int handle_hca_cap_odp(struct mlx5_core_dev *dev, void *set_ctx)
 
 static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)
 {
-       struct mlx5_profile *prof = dev->profile;
+       struct mlx5_profile *prof = &dev->profile;
        void *set_hca_cap;
        int err;
 
@@ -524,11 +524,11 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)
                 to_fw_pkey_sz(dev, 128));
 
        /* Check log_max_qp from HCA caps to set in current profile */
-       if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < profile[prof_sel].log_max_qp) {
+       if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
                mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
-                              profile[prof_sel].log_max_qp,
+                              prof->log_max_qp,
                               MLX5_CAP_GEN_MAX(dev, log_max_qp));
-               profile[prof_sel].log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
+               prof->log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
        }
        if (prof->mask & MLX5_PROF_MASK_QP_SIZE)
                MLX5_SET(cmd_hca_cap, set_hca_cap, log_max_qp,
@@ -1381,8 +1381,7 @@ int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx)
        struct mlx5_priv *priv = &dev->priv;
        int err;
 
-       dev->profile = &profile[profile_idx];
-
+       memcpy(&dev->profile, &profile[profile_idx], sizeof(dev->profile));
        INIT_LIST_HEAD(&priv->ctx_list);
        spin_lock_init(&priv->ctx_lock);
        mutex_init(&dev->intf_state_mutex);

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index f8e8d7e..020a8f7 100644 (file)
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -703,6 +703,27 @@ struct mlx5_hv_vhca;
 #define MLX5_LOG_SW_ICM_BLOCK_SIZE(dev) (MLX5_CAP_DEV_MEM(dev, log_sw_icm_alloc_granularity))
 #define MLX5_SW_ICM_BLOCK_SIZE(dev) (1 << MLX5_LOG_SW_ICM_BLOCK_SIZE(dev))
 
+enum {
+       MLX5_PROF_MASK_QP_SIZE          = (u64)1 << 0,
+       MLX5_PROF_MASK_MR_CACHE         = (u64)1 << 1,
+};
+
+enum {
+       MR_CACHE_LAST_STD_ENTRY = 20,
+       MLX5_IMR_MTT_CACHE_ENTRY,
+       MLX5_IMR_KSM_CACHE_ENTRY,
+       MAX_MR_CACHE_ENTRIES
+};
+
+struct mlx5_profile {
+       u64     mask;
+       u8      log_max_qp;
+       struct {
+               int     size;
+               int     limit;
+       } mr_cache[MAX_MR_CACHE_ENTRIES];
+};
+
 struct mlx5_core_dev {
        struct device *device;
        enum mlx5_coredev_type coredev_type;
@@ -731,7 +752,7 @@ struct mlx5_core_dev {
        struct mutex            intf_state_mutex;
        unsigned long           intf_state;
        struct mlx5_priv        priv;
-       struct mlx5_profile     *profile;
+       struct mlx5_profile     profile;
        u32                     issi;
        struct mlx5e_resources  mlx5e_res;
        struct mlx5_dm          *dm;
@@ -1083,18 +1104,6 @@ static inline u8 mlx5_mkey_variant(u32 mkey)
        return mkey & 0xff;
 }
 
-enum {
-       MLX5_PROF_MASK_QP_SIZE          = (u64)1 << 0,
-       MLX5_PROF_MASK_MR_CACHE         = (u64)1 << 1,
-};
-
-enum {
-       MR_CACHE_LAST_STD_ENTRY = 20,
-       MLX5_IMR_MTT_CACHE_ENTRY,
-       MLX5_IMR_KSM_CACHE_ENTRY,
-       MAX_MR_CACHE_ENTRIES
-};
-
 /* Async-atomic event notifier used by mlx5 core to forward FW
  * evetns recived from event queue to mlx5 consumers.
  * Optimise event queue dipatching.
@@ -1148,15 +1157,6 @@ int mlx5_rdma_rn_get_params(struct mlx5_core_dev *mdev,
                            struct ib_device *device,
                            struct rdma_netdev_alloc_params *params);
 
-struct mlx5_profile {
-       u64     mask;
-       u8      log_max_qp;
-       struct {
-               int     size;
-               int     limit;
-       } mr_cache[MAX_MR_CACHE_ENTRIES];
-};
-
 enum {
        MLX5_PCI_DEV_IS_VF              = 1 << 0,
 };