diff options
| 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 /net/xdp/xsk_buff_pool.c | |
| parent | 24a38b7c0c2c17f7b86c29f82beb7f2779704ca3 (diff) | |
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 'net/xdp/xsk_buff_pool.c')
| -rw-r--r-- | net/xdp/xsk_buff_pool.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c index 540ed75e4482..89cf3551d3e9 100644 --- a/net/xdp/xsk_buff_pool.c +++ b/net/xdp/xsk_buff_pool.c @@ -235,6 +235,7 @@ static struct xdp_buff_xsk *__xp_alloc(struct xsk_buff_pool *pool) for (;;) { if (!xskq_cons_peek_addr_unchecked(pool->fq, &addr)) { + pool->fq->queue_empty_descs++; xp_release(xskb); return NULL; } |