From 55ff4ea9a853f5ec9a8290c0ccc1d00c97e49f82 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sat, 28 Feb 2015 18:09:17 -0800 Subject: [PATCH] net: systemport: fix software maintained statistics Commit 60b4ea1781fd ("net: systemport: log RX buffer allocation and RX/TX DMA failures") added a few software maintained statistics using BCM_SYSPORT_STAT_MIB_RX and BCM_SYSPORT_STAT_MIB_TX. These statistics are read from the hardware MIB counters, such that bcm_sysport_update_mib_counters() was trying to read from a non-existing MIB offset for these counters. Fix this by introducing a special type: BCM_SYSPORT_STAT_SOFT, similar to BCM_SYSPORT_STAT_NETDEV, such that bcm_sysport_get_ethtool_stats will read from the software mib. Fixes: 60b4ea1781fd ("net: systemport: log RX buffer allocation and RX/TX DMA failures") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bcmsysport.c | 7 ++++--- drivers/net/ethernet/broadcom/bcmsysport.h | 2 ++ 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 5b308a4a4d0e..783543ad1fcf 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -274,9 +274,9 @@ 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), - STAT_MIB_RX("alloc_rx_buff_failed", mib.alloc_rx_buff_failed), - STAT_MIB_RX("rx_dma_failed", mib.rx_dma_failed), - STAT_MIB_TX("tx_dma_failed", mib.tx_dma_failed), + 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), }; #define BCM_SYSPORT_STATS_LEN ARRAY_SIZE(bcm_sysport_gstrings_stats) @@ -345,6 +345,7 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv) s = &bcm_sysport_gstrings_stats[i]; switch (s->type) { case BCM_SYSPORT_STAT_NETDEV: + case BCM_SYSPORT_STAT_SOFT: continue; case BCM_SYSPORT_STAT_MIB_RX: case BCM_SYSPORT_STAT_MIB_TX: diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h index fc19417d82a5..7e3d87a88c76 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.h +++ b/drivers/net/ethernet/broadcom/bcmsysport.h @@ -570,6 +570,7 @@ enum bcm_sysport_stat_type { BCM_SYSPORT_STAT_RUNT, BCM_SYSPORT_STAT_RXCHK, BCM_SYSPORT_STAT_RBUF, + BCM_SYSPORT_STAT_SOFT, }; /* Macros to help define ethtool statistics */ @@ -590,6 +591,7 @@ enum bcm_sysport_stat_type { #define STAT_MIB_RX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_RX) #define STAT_MIB_TX(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_MIB_TX) #define STAT_RUNT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_RUNT) +#define STAT_MIB_SOFT(str, m) STAT_MIB(str, m, BCM_SYSPORT_STAT_SOFT) #define STAT_RXCHK(str, m, ofs) { \ .stat_string = str, \ -- 2.20.1