From f3da6577da67a3cd44610ca54e308c6838c92157 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Wed, 28 Nov 2018 20:53:41 +0200 Subject: RDMA/mlx5: Initialize SRQ tables on mlx5_ib Transfer initialization and cleanup from mlx5_priv struct of mlx5_core_dev to be part of mlx5_ib_dev. This completes removal of SRQ from mlx5_core. Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/ib_rep.c | 4 ++ drivers/infiniband/hw/mlx5/main.c | 7 ++++ drivers/infiniband/hw/mlx5/mlx5_ib.h | 5 ++- drivers/infiniband/hw/mlx5/srq.c | 1 - drivers/infiniband/hw/mlx5/srq.h | 25 +++++++++++++ drivers/infiniband/hw/mlx5/srq_cmd.c | 72 ++++++++++++++++++++++++++++++------ 6 files changed, 100 insertions(+), 14 deletions(-) (limited to 'drivers/infiniband/hw') diff --git a/drivers/infiniband/hw/mlx5/ib_rep.c b/drivers/infiniband/hw/mlx5/ib_rep.c index 584ff2ea7810..8a682d86d634 100644 --- a/drivers/infiniband/hw/mlx5/ib_rep.c +++ b/drivers/infiniband/hw/mlx5/ib_rep.c @@ -4,6 +4,7 @@ */ #include "ib_rep.h" +#include "srq.h" static const struct mlx5_ib_profile rep_profile = { STAGE_CREATE(MLX5_IB_STAGE_INIT, @@ -21,6 +22,9 @@ static const struct mlx5_ib_profile rep_profile = { STAGE_CREATE(MLX5_IB_STAGE_ROCE, mlx5_ib_stage_rep_roce_init, mlx5_ib_stage_rep_roce_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_SRQ, + mlx5_init_srq_table, + mlx5_cleanup_srq_table), STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES, mlx5_ib_stage_dev_res_init, mlx5_ib_stage_dev_res_cleanup), diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 56472fa3e18b..96515a8c9d2c 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -60,6 +60,7 @@ #include "mlx5_ib.h" #include "ib_rep.h" #include "cmd.h" +#include "srq.h" #include #include #include @@ -6308,6 +6309,9 @@ static const struct mlx5_ib_profile pf_profile = { STAGE_CREATE(MLX5_IB_STAGE_ROCE, mlx5_ib_stage_roce_init, mlx5_ib_stage_roce_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_SRQ, + mlx5_init_srq_table, + mlx5_cleanup_srq_table), STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES, mlx5_ib_stage_dev_res_init, mlx5_ib_stage_dev_res_cleanup), @@ -6365,6 +6369,9 @@ static const struct mlx5_ib_profile nic_rep_profile = { STAGE_CREATE(MLX5_IB_STAGE_ROCE, mlx5_ib_stage_rep_roce_init, mlx5_ib_stage_rep_roce_cleanup), + STAGE_CREATE(MLX5_IB_STAGE_SRQ, + mlx5_init_srq_table, + mlx5_cleanup_srq_table), STAGE_CREATE(MLX5_IB_STAGE_DEVICE_RESOURCES, mlx5_ib_stage_dev_res_init, mlx5_ib_stage_dev_res_cleanup), diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 332d5c4d8ab3..861b68f2e330 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -41,7 +41,6 @@ #include #include #include -#include #include #include #include @@ -50,6 +49,8 @@ #include #include +#include "srq.h" + #define mlx5_ib_dbg(_dev, format, arg...) \ dev_dbg(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ __LINE__, current->pid, ##arg) @@ -774,6 +775,7 @@ enum mlx5_ib_stages { MLX5_IB_STAGE_CAPS, MLX5_IB_STAGE_NON_DEFAULT_CB, MLX5_IB_STAGE_ROCE, + MLX5_IB_STAGE_SRQ, MLX5_IB_STAGE_DEVICE_RESOURCES, MLX5_IB_STAGE_DEVICE_NOTIFIER, MLX5_IB_STAGE_ODP, @@ -942,6 +944,7 @@ struct mlx5_ib_dev { u64 sys_image_guid; struct mlx5_memic memic; u16 devx_whitelist_uid; + struct mlx5_srq_table srq_table; }; static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c index 2b184c7f531a..91dcd3918d96 100644 --- a/drivers/infiniband/hw/mlx5/srq.c +++ b/drivers/infiniband/hw/mlx5/srq.c @@ -5,7 +5,6 @@ #include #include -#include #include #include #include diff --git a/drivers/infiniband/hw/mlx5/srq.h b/drivers/infiniband/hw/mlx5/srq.h index 1110aeaa775e..75eb5839ae95 100644 --- a/drivers/infiniband/hw/mlx5/srq.h +++ b/drivers/infiniband/hw/mlx5/srq.h @@ -37,6 +37,28 @@ struct mlx5_srq_attr { struct mlx5_ib_dev; +struct mlx5_core_srq { + struct mlx5_core_rsc_common common; /* must be first */ + u32 srqn; + int max; + size_t max_gs; + size_t max_avail_gather; + int wqe_shift; + void (*event)(struct mlx5_core_srq *srq, enum mlx5_event e); + + atomic_t refcount; + struct completion free; + u16 uid; +}; + +struct mlx5_srq_table { + struct notifier_block nb; + /* protect radix tree + */ + spinlock_t lock; + struct radix_tree_root tree; +}; + int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq, struct mlx5_srq_attr *in); int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq); @@ -45,4 +67,7 @@ int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq, int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq, u16 lwm, int is_srq); struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn); + +int mlx5_init_srq_table(struct mlx5_ib_dev *dev); +void mlx5_cleanup_srq_table(struct mlx5_ib_dev *dev); #endif /* MLX5_IB_SRQ_H */ diff --git a/drivers/infiniband/hw/mlx5/srq_cmd.c b/drivers/infiniband/hw/mlx5/srq_cmd.c index fdb9443f49f0..6be89c6be40f 100644 --- a/drivers/infiniband/hw/mlx5/srq_cmd.c +++ b/drivers/infiniband/hw/mlx5/srq_cmd.c @@ -80,12 +80,9 @@ static void get_srqc(void *srqc, struct mlx5_srq_attr *in) struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn) { - struct mlx5_core_dev *mdev = dev->mdev; - struct mlx5_srq_table *table; + struct mlx5_srq_table *table = &dev->srq_table; struct mlx5_core_srq *srq; - table = &mdev->priv.srq_table; - spin_lock(&table->lock); srq = radix_tree_lookup(&table->tree, srqn); @@ -576,12 +573,9 @@ static int destroy_srq_split(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq) int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq, struct mlx5_srq_attr *in) { - struct mlx5_core_dev *mdev = dev->mdev; - struct mlx5_srq_table *table; + struct mlx5_srq_table *table = &dev->srq_table; int err; - table = &mdev->priv.srq_table; - switch (in->type) { case IB_SRQT_XRC: srq->common.res = MLX5_RES_XSRQ; @@ -616,13 +610,10 @@ err_destroy_srq_split: int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq) { - struct mlx5_core_dev *mdev = dev->mdev; - struct mlx5_srq_table *table; + struct mlx5_srq_table *table = &dev->srq_table; struct mlx5_core_srq *tmp; int err; - table = &mdev->priv.srq_table; - spin_lock_irq(&table->lock); tmp = radix_tree_delete(&table->tree, srq->srqn); spin_unlock_irq(&table->lock); @@ -669,3 +660,60 @@ int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq, return arm_rmp_cmd(dev, srq, lwm); } } + +static int srq_event_notifier(struct notifier_block *nb, + unsigned long type, void *data) +{ + struct mlx5_srq_table *table; + struct mlx5_core_srq *srq; + struct mlx5_eqe *eqe; + u32 srqn; + + if (type != MLX5_EVENT_TYPE_SRQ_CATAS_ERROR && + type != MLX5_EVENT_TYPE_SRQ_RQ_LIMIT) + return NOTIFY_DONE; + + table = container_of(nb, struct mlx5_srq_table, nb); + + eqe = data; + srqn = be32_to_cpu(eqe->data.qp_srq.qp_srq_n) & 0xffffff; + + spin_lock(&table->lock); + + srq = radix_tree_lookup(&table->tree, srqn); + if (srq) + atomic_inc(&srq->refcount); + + spin_unlock(&table->lock); + + if (!srq) + return NOTIFY_OK; + + srq->event(srq, eqe->type); + + if (atomic_dec_and_test(&srq->refcount)) + complete(&srq->free); + + return NOTIFY_OK; +} + +int mlx5_init_srq_table(struct mlx5_ib_dev *dev) +{ + struct mlx5_srq_table *table = &dev->srq_table; + + memset(table, 0, sizeof(*table)); + spin_lock_init(&table->lock); + INIT_RADIX_TREE(&table->tree, GFP_ATOMIC); + + table->nb.notifier_call = srq_event_notifier; + mlx5_notifier_register(dev->mdev, &table->nb); + + return 0; +} + +void mlx5_cleanup_srq_table(struct mlx5_ib_dev *dev) +{ + struct mlx5_srq_table *table = &dev->srq_table; + + mlx5_notifier_unregister(dev->mdev, &table->nb); +} -- cgit v1.2.3-59-g8ed1b