diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2018-11-20 02:21:40 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-20 05:53:45 +0300 |
| commit | 57f31bbaa9c1576118c020aef67ca9de97f14392 (patch) | |
| tree | e4ca6fafba860d974b38263660d2db862c7b4a68 /drivers/net/ethernet | |
| parent | 68e9864221cae716680f64ac2832c4bfa50006f0 (diff) | |
| download | linux-57f31bbaa9c1576118c020aef67ca9de97f14392.tar.xz | |
nfp: abm: switch to extended stats for reading packet/byte counts
In PRIO-enabled FW read the statistics from per-band symbol, rather
than from the standard per-PCIe-queue counters.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/abm/ctrl.c | 47 | ||||
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/abm/main.h | 2 |
2 files changed, 46 insertions, 3 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/abm/ctrl.c b/drivers/net/ethernet/netronome/nfp/abm/ctrl.c index 8b2598a223de..013ba6c85d2b 100644 --- a/drivers/net/ethernet/netronome/nfp/abm/ctrl.c +++ b/drivers/net/ethernet/netronome/nfp/abm/ctrl.c @@ -28,6 +28,11 @@ #define NFP_QMSTAT_DROP 16 #define NFP_QMSTAT_ECN 24 +#define NFP_Q_STAT_SYM_NAME "_abi_nfd_rxq_stats%u%s" +#define NFP_Q_STAT_STRIDE 16 +#define NFP_Q_STAT_PKTS 0 +#define NFP_Q_STAT_BYTES 8 + static int nfp_abm_ctrl_stat(struct nfp_abm_link *alink, const struct nfp_rtsym *sym, unsigned int stride, unsigned int offset, unsigned int band, @@ -109,14 +114,42 @@ u64 nfp_abm_ctrl_stat_sto(struct nfp_abm_link *alink, unsigned int i) return val; } +static int +nfp_abm_ctrl_stat_basic(struct nfp_abm_link *alink, unsigned int band, + unsigned int queue, unsigned int off, u64 *val) +{ + if (!nfp_abm_has_prio(alink->abm)) { + if (!band) { + unsigned int id = alink->queue_base + queue; + + *val = nn_readq(alink->vnic, + NFP_NET_CFG_RXR_STATS(id) + off); + } else { + *val = 0; + } + + return 0; + } else { + return nfp_abm_ctrl_stat(alink, alink->abm->q_stats, + NFP_Q_STAT_STRIDE, off, band, queue, + true, val); + } +} + int nfp_abm_ctrl_read_q_stats(struct nfp_abm_link *alink, unsigned int band, unsigned int queue, struct nfp_alink_stats *stats) { int err; - stats->tx_pkts += nn_readq(alink->vnic, NFP_NET_CFG_RXR_STATS(queue)); - stats->tx_bytes += nn_readq(alink->vnic, - NFP_NET_CFG_RXR_STATS(queue) + 8); + err = nfp_abm_ctrl_stat_basic(alink, band, queue, NFP_Q_STAT_PKTS, + &stats->tx_pkts); + if (err) + return err; + + err = nfp_abm_ctrl_stat_basic(alink, band, queue, NFP_Q_STAT_BYTES, + &stats->tx_bytes); + if (err) + return err; err = nfp_abm_ctrl_stat(alink, alink->abm->q_lvls, NFP_QLVL_STRIDE, NFP_QLVL_BLOG_BYTES, band, queue, false, @@ -251,5 +284,13 @@ int nfp_abm_ctrl_find_addrs(struct nfp_abm *abm) return PTR_ERR(sym); abm->qm_stats = sym; + if (nfp_abm_has_prio(abm)) { + sym = nfp_abm_ctrl_find_q_rtsym(abm, NFP_Q_STAT_SYM_NAME, + NFP_Q_STAT_STRIDE); + if (IS_ERR(sym)) + return PTR_ERR(sym); + abm->q_stats = sym; + } + return 0; } diff --git a/drivers/net/ethernet/netronome/nfp/abm/main.h b/drivers/net/ethernet/netronome/nfp/abm/main.h index b18a699dac50..054228c29184 100644 --- a/drivers/net/ethernet/netronome/nfp/abm/main.h +++ b/drivers/net/ethernet/netronome/nfp/abm/main.h @@ -38,6 +38,7 @@ struct nfp_net; * in switchdev mode * @q_lvls: queue level control area * @qm_stats: queue statistics symbol + * @q_stats: basic queue statistics (only in per-band case) */ struct nfp_abm { struct nfp_app *app; @@ -53,6 +54,7 @@ struct nfp_abm { enum devlink_eswitch_mode eswitch_mode; const struct nfp_rtsym *q_lvls; const struct nfp_rtsym *qm_stats; + const struct nfp_rtsym *q_stats; }; /** |