diff options
| author | Srikanth Jampala <Jampala.Srikanth@cavium.com> | 2018-09-21 14:38:01 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-09-28 07:46:26 +0300 |
| commit | fec165c947935b2b65fac3ee8081b4a5aa960872 (patch) | |
| tree | 04cc31bf9324ee21200f385ff353e18bd25bf8bb /drivers | |
| parent | 48e10548f82ea33e01ab8ed92dbcb9513463cb90 (diff) | |
| download | linux-fec165c947935b2b65fac3ee8081b4a5aa960872.tar.xz | |
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')
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_dev.h | 7 | ||||
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_main.c | 5 | ||||
| -rw-r--r-- | drivers/crypto/cavium/nitrox/nitrox_reqmgr.c | 9 |
3 files changed, 20 insertions, 1 deletions
diff --git a/drivers/crypto/cavium/nitrox/nitrox_dev.h b/drivers/crypto/cavium/nitrox/nitrox_dev.h index 1059495ee541..a1442006f256 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_dev.h +++ b/drivers/crypto/cavium/nitrox/nitrox_dev.h @@ -75,6 +75,12 @@ struct nitrox_hw { u8 zip_cores; }; +struct nitrox_stats { + atomic64_t posted; + atomic64_t completed; + atomic64_t dropped; +}; + #define MAX_MSIX_VECTOR_NAME 20 /** * vectors for queues (64 AE, 64 SE and 64 ZIP) and @@ -176,6 +182,7 @@ struct nitrox_device { struct nitrox_msix msix; struct nitrox_bh bh; + struct nitrox_stats stats; struct nitrox_hw hw; #if IS_ENABLED(CONFIG_DEBUG_FS) struct dentry *debugfs_dir; diff --git a/drivers/crypto/cavium/nitrox/nitrox_main.c b/drivers/crypto/cavium/nitrox/nitrox_main.c index acce0f0b9c7a..362e7217354c 100644 --- a/drivers/crypto/cavium/nitrox/nitrox_main.c +++ b/drivers/crypto/cavium/nitrox/nitrox_main.c @@ -542,6 +542,11 @@ static int nitrox_probe(struct pci_dev *pdev, if (err) goto pf_hw_fail; + /* clear the statistics */ + atomic64_set(&ndev->stats.posted, 0); + atomic64_set(&ndev->stats.completed, 0); + atomic64_set(&ndev->stats.dropped, 0); + atomic_set(&ndev->state, __NDEV_READY); /* barrier to sync with other cpus */ smp_mb__after_atomic(); 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 */ |