diff options
| author | Srikanth Jampala <Jampala.Srikanth@cavium.com> | 2018-09-21 17:08:01 +0530 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-09-28 12:46:26 +0800 |
| commit | fec165c947935b2b65fac3ee8081b4a5aa960872 (patch) | |
| tree | 04cc31bf9324ee21200f385ff353e18bd25bf8bb /drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | |
| parent | 48e10548f82ea33e01ab8ed92dbcb9513463cb90 (diff) | |
| download | lwn-fec165c947935b2b65fac3ee8081b4a5aa960872.tar.gz lwn-fec165c947935b2b65fac3ee8081b4a5aa960872.zip | |
crypto: cavium/nitrox - add support for per device request statistics.
Add per device statistics like number of requests posted,
dropped and completed etc.
Signed-off-by: Srikanth Jampala <Jampala.Srikanth@cavium.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/cavium/nitrox/nitrox_reqmgr.c')
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c index 4a362fc22f62..f325b48ba904 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c +++ b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c @@ -460,6 +460,9 @@ static void post_se_instr(struct nitrox_softreq *sr, cmdq->write_idx = incr_index(idx, 1, ndev->qlen); spin_unlock_bh(&cmdq->cmdq_lock); + + /* increment the posted command count */ + atomic64_inc(&ndev->stats.posted); } static int post_backlog_cmds(struct nitrox_cmdq *cmdq) @@ -508,8 +511,11 @@ static int nitrox_enqueue_request(struct nitrox_softreq *sr) post_backlog_cmds(cmdq); if (unlikely(cmdq_full(cmdq, ndev->qlen))) { - if (!(sr->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) + if (!(sr->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) { + /* increment drop count */ + atomic64_inc(&ndev->stats.dropped); return -ENOSPC; + } /* add to backlog list */ backlog_list_add(sr, cmdq); return -EBUSY; @@ -694,6 +700,7 @@ static void process_response_list(struct nitrox_cmdq *cmdq) READ_ONCE(sr->resp.orh)); } atomic_dec(&cmdq->pending_count); + atomic64_inc(&ndev->stats.completed); /* sync with other cpus */ smp_mb__after_atomic(); /* remove from response list */ |