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| author | Florian Fainelli <f.fainelli@gmail.com> | 2022-10-28 15:21:40 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-10-31 20:05:03 -0700 |
| commit | b98deb2f9803849fd0db714ea9f27aa18f3d9103 (patch) | |
| tree | a436093e6cc3dd584f03dd36aa81d779e6400585 /drivers/net/ethernet/broadcom/bcmsysport.c | |
| parent | 37c8489012dd9e830f2138ef6f2f52dc60ff944c (diff) | |
| download | linux-b98deb2f9803849fd0db714ea9f27aa18f3d9103.tar.bz2 | |
net: systemport: Add support for RDMA overflow statistic counter
RDMA overflows can happen if the Ethernet controller does not have
enough bandwidth allocated at the memory controller level, report RDMA
overflows and deal with saturation, similar to the RBUF overflow
counter.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221028222141.3208429-1-f.fainelli@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bcmsysport.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bcmsysport.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index f8b1adc389b3..38d0cdaf22a5 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -295,6 +295,8 @@ static const struct bcm_sysport_stats bcm_sysport_gstrings_stats[] = { /* RBUF misc statistics */ STAT_RBUF("rbuf_ovflow_cnt", mib.rbuf_ovflow_cnt, RBUF_OVFL_DISC_CNTR), STAT_RBUF("rbuf_err_cnt", mib.rbuf_err_cnt, RBUF_ERR_PKT_CNTR), + /* RDMA misc statistics */ + STAT_RDMA("rdma_ovflow_cnt", mib.rdma_ovflow_cnt, RDMA_OVFL_DISC_CNTR), STAT_MIB_SOFT("alloc_rx_buff_failed", mib.alloc_rx_buff_failed), STAT_MIB_SOFT("rx_dma_failed", mib.rx_dma_failed), STAT_MIB_SOFT("tx_dma_failed", mib.tx_dma_failed), @@ -333,6 +335,7 @@ static inline bool bcm_sysport_lite_stat_valid(enum bcm_sysport_stat_type type) case BCM_SYSPORT_STAT_NETDEV64: case BCM_SYSPORT_STAT_RXCHK: case BCM_SYSPORT_STAT_RBUF: + case BCM_SYSPORT_STAT_RDMA: case BCM_SYSPORT_STAT_SOFT: return true; default: @@ -436,6 +439,14 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv) if (val == ~0) rbuf_writel(priv, 0, s->reg_offset); break; + case BCM_SYSPORT_STAT_RDMA: + if (!priv->is_lite) + continue; + + val = rdma_readl(priv, s->reg_offset); + if (val == ~0) + rdma_writel(priv, 0, s->reg_offset); + break; } j += s->stat_sizeof; |