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nfp: don't report standard netdev statistics in ethtool 

We have been recently called out as a bad example for reporting
standard netdev statistics as part of ethtool.  Fix that :)

Removing standard statistics allows us to simplify the structure
holding definitions since we no longer have to mux different types
of statistics.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-08-18 15:48:14 -07:00 committed by David S. Miller
parent a2f4c3d9bd
commit 1cfcc97bb1
1 changed files with 30 additions and 75 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

105
drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
View File

@ -59,74 +59,44 @@ enum nfp_dump_diag {
NFP_DUMP_NSP_DIAG = 0,
};
/* Support for stats. Returns netdev, driver, and device stats */
enum { NETDEV_ET_STATS, NFP_NET_DRV_ET_STATS, NFP_NET_DEV_ET_STATS };
struct _nfp_net_et_stats {
struct nfp_et_stat {
char name[ETH_GSTRING_LEN];
int type;
int sz;
int off;
};
#define NN_ET_NETDEV_STAT(m) NETDEV_ET_STATS, \
FIELD_SIZEOF(struct net_device_stats, m), \
offsetof(struct net_device_stats, m)
/* For stats in the control BAR (other than Q stats) */
#define NN_ET_DEV_STAT(m) NFP_NET_DEV_ET_STATS, \
sizeof(u64), \
(m)
static const struct _nfp_net_et_stats nfp_net_et_stats[] = {
/* netdev stats */
{"rx_packets", NN_ET_NETDEV_STAT(rx_packets)},
{"tx_packets", NN_ET_NETDEV_STAT(tx_packets)},
{"rx_bytes", NN_ET_NETDEV_STAT(rx_bytes)},
{"tx_bytes", NN_ET_NETDEV_STAT(tx_bytes)},
{"rx_errors", NN_ET_NETDEV_STAT(rx_errors)},
{"tx_errors", NN_ET_NETDEV_STAT(tx_errors)},
{"rx_dropped", NN_ET_NETDEV_STAT(rx_dropped)},
{"tx_dropped", NN_ET_NETDEV_STAT(tx_dropped)},
{"multicast", NN_ET_NETDEV_STAT(multicast)},
{"collisions", NN_ET_NETDEV_STAT(collisions)},
{"rx_over_errors", NN_ET_NETDEV_STAT(rx_over_errors)},
{"rx_crc_errors", NN_ET_NETDEV_STAT(rx_crc_errors)},
{"rx_frame_errors", NN_ET_NETDEV_STAT(rx_frame_errors)},
{"rx_fifo_errors", NN_ET_NETDEV_STAT(rx_fifo_errors)},
{"rx_missed_errors", NN_ET_NETDEV_STAT(rx_missed_errors)},
{"tx_aborted_errors", NN_ET_NETDEV_STAT(tx_aborted_errors)},
{"tx_carrier_errors", NN_ET_NETDEV_STAT(tx_carrier_errors)},
{"tx_fifo_errors", NN_ET_NETDEV_STAT(tx_fifo_errors)},
static const struct nfp_et_stat nfp_net_et_stats[] = {
/* Stats from the device */
{"dev_rx_discards", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_DISCARDS)},
{"dev_rx_errors", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_ERRORS)},
{"dev_rx_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_OCTETS)},
{"dev_rx_uc_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_UC_OCTETS)},
{"dev_rx_mc_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_MC_OCTETS)},
{"dev_rx_bc_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_BC_OCTETS)},
{"dev_rx_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_FRAMES)},
{"dev_rx_mc_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_MC_FRAMES)},
{"dev_rx_bc_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_RX_BC_FRAMES)},
{ "dev_rx_discards", NFP_NET_CFG_STATS_RX_DISCARDS },
{ "dev_rx_errors", NFP_NET_CFG_STATS_RX_ERRORS },
{ "dev_rx_bytes", NFP_NET_CFG_STATS_RX_OCTETS },
{ "dev_rx_uc_bytes", NFP_NET_CFG_STATS_RX_UC_OCTETS },
{ "dev_rx_mc_bytes", NFP_NET_CFG_STATS_RX_MC_OCTETS },
{ "dev_rx_bc_bytes", NFP_NET_CFG_STATS_RX_BC_OCTETS },
{ "dev_rx_pkts", NFP_NET_CFG_STATS_RX_FRAMES },
{ "dev_rx_mc_pkts", NFP_NET_CFG_STATS_RX_MC_FRAMES },
{ "dev_rx_bc_pkts", NFP_NET_CFG_STATS_RX_BC_FRAMES },
{"dev_tx_discards", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_DISCARDS)},
{"dev_tx_errors", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_ERRORS)},
{"dev_tx_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_OCTETS)},
{"dev_tx_uc_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_UC_OCTETS)},
{"dev_tx_mc_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_MC_OCTETS)},
{"dev_tx_bc_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_BC_OCTETS)},
{"dev_tx_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_FRAMES)},
{"dev_tx_mc_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_MC_FRAMES)},
{"dev_tx_bc_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_TX_BC_FRAMES)},
{ "dev_tx_discards", NFP_NET_CFG_STATS_TX_DISCARDS },
{ "dev_tx_errors", NFP_NET_CFG_STATS_TX_ERRORS },
{ "dev_tx_bytes", NFP_NET_CFG_STATS_TX_OCTETS },
{ "dev_tx_uc_bytes", NFP_NET_CFG_STATS_TX_UC_OCTETS },
{ "dev_tx_mc_bytes", NFP_NET_CFG_STATS_TX_MC_OCTETS },
{ "dev_tx_bc_bytes", NFP_NET_CFG_STATS_TX_BC_OCTETS },
{ "dev_tx_pkts", NFP_NET_CFG_STATS_TX_FRAMES },
{ "dev_tx_mc_pkts", NFP_NET_CFG_STATS_TX_MC_FRAMES },
{ "dev_tx_bc_pkts", NFP_NET_CFG_STATS_TX_BC_FRAMES },
{"bpf_pass_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP0_FRAMES)},
{"bpf_pass_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP0_BYTES)},
{ "bpf_pass_pkts", NFP_NET_CFG_STATS_APP0_FRAMES },
{ "bpf_pass_bytes", NFP_NET_CFG_STATS_APP0_BYTES },
/* see comments in outro functions in nfp_bpf_jit.c to find out
* how different BPF modes use app-specific counters
*/
{"bpf_app1_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP1_FRAMES)},
{"bpf_app1_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP1_BYTES)},
{"bpf_app2_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP2_FRAMES)},
{"bpf_app2_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP2_BYTES)},
{"bpf_app3_pkts", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP3_FRAMES)},
{"bpf_app3_bytes", NN_ET_DEV_STAT(NFP_NET_CFG_STATS_APP3_BYTES)},
{ "bpf_app1_pkts", NFP_NET_CFG_STATS_APP1_FRAMES },
{ "bpf_app1_bytes", NFP_NET_CFG_STATS_APP1_BYTES },
{ "bpf_app2_pkts", NFP_NET_CFG_STATS_APP2_FRAMES },
{ "bpf_app2_bytes", NFP_NET_CFG_STATS_APP2_BYTES },
{ "bpf_app3_pkts", NFP_NET_CFG_STATS_APP3_FRAMES },
{ "bpf_app3_bytes", NFP_NET_CFG_STATS_APP3_BYTES },
};
#define NN_ET_GLOBAL_STATS_LEN ARRAY_SIZE(nfp_net_et_stats)
@ -421,28 +391,13 @@ static void nfp_net_get_stats(struct net_device *netdev,
{
u64 gathered_stats[NN_ET_RVEC_GATHER_STATS] = {};
struct nfp_net *nn = netdev_priv(netdev);
struct rtnl_link_stats64 *netdev_stats;
struct rtnl_link_stats64 temp = {};
u64 tmp[NN_ET_RVEC_GATHER_STATS];
u8 __iomem *io_p;
int i, j, k;
u8 *p;
netdev_stats = dev_get_stats(netdev, &temp);
for (i = 0; i < NN_ET_GLOBAL_STATS_LEN; i++) {
switch (nfp_net_et_stats[i].type) {
case NETDEV_ET_STATS:
p = (char *)netdev_stats + nfp_net_et_stats[i].off;
data[i] = nfp_net_et_stats[i].sz == sizeof(u64) ?
*(u64 *)p : *(u32 *)p;
break;
case NFP_NET_DEV_ET_STATS:
io_p = nn->dp.ctrl_bar + nfp_net_et_stats[i].off;
data[i] = readq(io_p);
break;
}
io_p = nn->dp.ctrl_bar + nfp_net_et_stats[i].off;
data[i] = readq(io_p);
}
for (j = 0; j < nn->dp.num_r_vecs; j++) {
unsigned int start;