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| author | Ciara Loftus <ciara.loftus@intel.com> | 2020-07-08 07:28:33 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-07-13 15:32:56 -0700 |
| commit | 8aa5a33578e9685d06020bd10d1637557423e945 (patch) | |
| tree | 848b7defe21085b2fbd44cc2acc42a2a769c01d4 /include | |
| parent | 24a38b7c0c2c17f7b86c29f82beb7f2779704ca3 (diff) | |
| download | linux-8aa5a33578e9685d06020bd10d1637557423e945.tar.gz linux-8aa5a33578e9685d06020bd10d1637557423e945.tar.bz2 linux-8aa5a33578e9685d06020bd10d1637557423e945.zip | |
xsk: Add new statistics
It can be useful for the user to know the reason behind a dropped packet.
Introduce new counters which track drops on the receive path caused by:
1. rx ring being full
2. fill ring being empty
Also, on the tx path introduce a counter which tracks the number of times
we attempt pull from the tx ring when it is empty.
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200708072835.4427-2-ciara.loftus@intel.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/xdp_sock.h | 4 | ||||
| -rw-r--r-- | include/uapi/linux/if_xdp.h | 5 |
2 files changed, 8 insertions, 1 deletions
diff --git a/include/net/xdp_sock.h b/include/net/xdp_sock.h index 96bfc5f5f24e..c9d87cc40c11 100644 --- a/include/net/xdp_sock.h +++ b/include/net/xdp_sock.h @@ -69,7 +69,11 @@ struct xdp_sock { spinlock_t tx_completion_lock; /* Protects generic receive. */ spinlock_t rx_lock; + + /* Statistics */ u64 rx_dropped; + u64 rx_queue_full; + struct list_head map_list; /* Protects map_list */ spinlock_t map_list_lock; diff --git a/include/uapi/linux/if_xdp.h b/include/uapi/linux/if_xdp.h index be328c59389d..a78a8096f4ce 100644 --- a/include/uapi/linux/if_xdp.h +++ b/include/uapi/linux/if_xdp.h @@ -73,9 +73,12 @@ struct xdp_umem_reg { }; struct xdp_statistics { - __u64 rx_dropped; /* Dropped for reasons other than invalid desc */ + __u64 rx_dropped; /* Dropped for other reasons */ __u64 rx_invalid_descs; /* Dropped due to invalid descriptor */ __u64 tx_invalid_descs; /* Dropped due to invalid descriptor */ + __u64 rx_ring_full; /* Dropped due to rx ring being full */ + __u64 rx_fill_ring_empty_descs; /* Failed to retrieve item from fill ring */ + __u64 tx_ring_empty_descs; /* Failed to retrieve item from tx ring */ }; struct xdp_options { |