diff options
| author | Gal Pressman <galpress@amazon.com> | 2020-04-20 09:22:12 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-05-02 20:32:14 -0300 |
| commit | eca5757f804f046dfaab4e9d3ea39af1f2523990 (patch) | |
| tree | 55ab4078a3a15e3b4a0fa0d22b87529aa9910ef4 /drivers/infiniband/hw/efa/efa_verbs.c | |
| parent | b2ea69b3b4430642c98eea2c2d08419f2f02124d (diff) | |
| download | lwn-eca5757f804f046dfaab4e9d3ea39af1f2523990.tar.gz lwn-eca5757f804f046dfaab4e9d3ea39af1f2523990.zip | |
RDMA/efa: Count mmap failures
Add a new stat that counts mmap failures, which might help when debugging
different issues.
Link: https://lore.kernel.org/r/20200420062213.44577-3-galpress@amazon.com
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/efa/efa_verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/efa/efa_verbs.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c index 43cc93b19569..1f8162b2067d 100644 --- a/drivers/infiniband/hw/efa/efa_verbs.c +++ b/drivers/infiniband/hw/efa/efa_verbs.c @@ -44,7 +44,8 @@ struct efa_user_mmap_entry { op(EFA_CREATE_CQ_ERR, "create_cq_err") \ op(EFA_REG_MR_ERR, "reg_mr_err") \ op(EFA_ALLOC_UCONTEXT_ERR, "alloc_ucontext_err") \ - op(EFA_CREATE_AH_ERR, "create_ah_err") + op(EFA_CREATE_AH_ERR, "create_ah_err") \ + op(EFA_MMAP_ERR, "mmap_err") #define EFA_STATS_ENUM(ename, name) ename, #define EFA_STATS_STR(ename, name) [ename] = name, @@ -1569,6 +1570,7 @@ static int __efa_mmap(struct efa_dev *dev, struct efa_ucontext *ucontext, ibdev_dbg(&dev->ibdev, "pgoff[%#lx] does not have valid entry\n", vma->vm_pgoff); + atomic64_inc(&dev->stats.sw_stats.mmap_err); return -EINVAL; } entry = to_emmap(rdma_entry); @@ -1604,12 +1606,14 @@ static int __efa_mmap(struct efa_dev *dev, struct efa_ucontext *ucontext, err = -EINVAL; } - if (err) + if (err) { ibdev_dbg( &dev->ibdev, "Couldn't mmap address[%#llx] length[%#zx] mmap_flag[%d] err[%d]\n", entry->address, rdma_entry->npages * PAGE_SIZE, entry->mmap_flag, err); + atomic64_inc(&dev->stats.sw_stats.mmap_err); + } rdma_user_mmap_entry_put(rdma_entry); return err; @@ -1758,6 +1762,7 @@ int efa_get_hw_stats(struct ib_device *ibdev, struct rdma_hw_stats *stats, stats->value[EFA_REG_MR_ERR] = atomic64_read(&s->sw_stats.reg_mr_err); stats->value[EFA_ALLOC_UCONTEXT_ERR] = atomic64_read(&s->sw_stats.alloc_ucontext_err); stats->value[EFA_CREATE_AH_ERR] = atomic64_read(&s->sw_stats.create_ah_err); + stats->value[EFA_MMAP_ERR] = atomic64_read(&s->sw_stats.mmap_err); return ARRAY_SIZE(efa_stats_names); } |