diff options
| author | Hariprasad Kelam <hkelam@marvell.com> | 2024-11-22 21:50:33 +0530 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-11-26 12:09:40 +0100 |
| commit | 07cd1eb166a3fa7244afa74d48bd13c9df7c559d (patch) | |
| tree | b881aa3d05546f2e7ec59c89fc9908c21ed20f0a /drivers/net/ethernet/marvell | |
| parent | d1e8884e050c1255a9ceb477f5ff926ee9214a23 (diff) | |
octeontx2-af: RPM: fix stale RSFEC counters
The earlier patch sets the 'Stats control register' for RPM
receive/transmit statistics instead of RSFEC statistics,
causing the driver to return stale FEC counters.
Fixes: 84ad3642115d ("octeontx2-af: Add FEC stats for RPM/RPM_USX block")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/marvell')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rpm.c | 13 | ||||
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rpm.h | 4 |
2 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c index 22dd50a3fcd3..70629f94c27e 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rpm.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.c @@ -699,6 +699,10 @@ int rpm_get_fec_stats(void *rpmd, int lmac_id, struct cgx_fec_stats_rsp *rsp) if (rpm->lmac_idmap[lmac_id]->link_info.fec == OTX2_FEC_NONE) return 0; + /* latched registers FCFECX_CW_HI/RSFEC_STAT_FAST_DATA_HI_CDC are common + * for all counters. Acquire lock to ensure serialized reads + */ + mutex_lock(&rpm->lock); if (rpm->lmac_idmap[lmac_id]->link_info.fec == OTX2_FEC_BASER) { val_lo = rpm_read(rpm, lmac_id, RPMX_MTI_FCFECX_VL0_CCW_LO); val_hi = rpm_read(rpm, lmac_id, RPMX_MTI_FCFECX_CW_HI); @@ -725,20 +729,21 @@ int rpm_get_fec_stats(void *rpmd, int lmac_id, struct cgx_fec_stats_rsp *rsp) } } else { /* enable RS-FEC capture */ - cfg = rpm_read(rpm, 0, RPMX_MTI_STAT_STATN_CONTROL); + cfg = rpm_read(rpm, 0, RPMX_MTI_RSFEC_STAT_STATN_CONTROL); cfg |= RPMX_RSFEC_RX_CAPTURE | BIT(lmac_id); - rpm_write(rpm, 0, RPMX_MTI_STAT_STATN_CONTROL, cfg); + rpm_write(rpm, 0, RPMX_MTI_RSFEC_STAT_STATN_CONTROL, cfg); val_lo = rpm_read(rpm, 0, RPMX_MTI_RSFEC_STAT_COUNTER_CAPTURE_2); - val_hi = rpm_read(rpm, 0, RPMX_MTI_STAT_DATA_HI_CDC); + val_hi = rpm_read(rpm, 0, RPMX_MTI_RSFEC_STAT_FAST_DATA_HI_CDC); rsp->fec_corr_blks = (val_hi << 32 | val_lo); val_lo = rpm_read(rpm, 0, RPMX_MTI_RSFEC_STAT_COUNTER_CAPTURE_3); - val_hi = rpm_read(rpm, 0, RPMX_MTI_STAT_DATA_HI_CDC); + val_hi = rpm_read(rpm, 0, RPMX_MTI_RSFEC_STAT_FAST_DATA_HI_CDC); rsp->fec_uncorr_blks = (val_hi << 32 | val_lo); } + mutex_unlock(&rpm->lock); return 0; } diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h index 34b11deb0f3c..a5773fbacaff 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rpm.h +++ b/drivers/net/ethernet/marvell/octeontx2/af/rpm.h @@ -84,9 +84,11 @@ /* FEC stats */ #define RPMX_MTI_STAT_STATN_CONTROL 0x10018 #define RPMX_MTI_STAT_DATA_HI_CDC 0x10038 -#define RPMX_RSFEC_RX_CAPTURE BIT_ULL(27) +#define RPMX_RSFEC_RX_CAPTURE BIT_ULL(28) #define RPMX_CMD_CLEAR_RX BIT_ULL(30) #define RPMX_CMD_CLEAR_TX BIT_ULL(31) +#define RPMX_MTI_RSFEC_STAT_STATN_CONTROL 0x40018 +#define RPMX_MTI_RSFEC_STAT_FAST_DATA_HI_CDC 0x40000 #define RPMX_MTI_RSFEC_STAT_COUNTER_CAPTURE_2 0x40050 #define RPMX_MTI_RSFEC_STAT_COUNTER_CAPTURE_3 0x40058 #define RPMX_MTI_FCFECX_VL0_CCW_LO 0x38618 |