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Message-Id: <1459886547-146445-12-git-send-email-jeffrey.t.kirsher@intel.com>
Date: Tue, 5 Apr 2016 13:02:23 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: Jacob Keller <jacob.e.keller@...el.com>, netdev@...r.kernel.org,
nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next v2 11/15] fm10k: add helper functions to set strings and data for ethtool stats
From: Jacob Keller <jacob.e.keller@...el.com>
Reduce duplicate code and the amount of indentation by adding
fm10k_add_stat_strings and fm10k_add_ethtool_stats functions which help
add fm10k_stat structures to the ethtool stats callbacks. This helps
increase ease of use for future stat additions, and increases code
readability. Skip handling of the per-queue stats as these will be
reworked in a following patch.
Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 164 ++++++++++++-----------
1 file changed, 83 insertions(+), 81 deletions(-)
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
index 28837ae..c67121c 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -153,57 +153,51 @@ static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
"debug-statistics",
};
+static void fm10k_add_stat_strings(char **p, const char *prefix,
+ const struct fm10k_stats stats[],
+ const unsigned int size)
+{
+ unsigned int i;
+
+ for (i = 0; i < size; i++) {
+ snprintf(*p, ETH_GSTRING_LEN, "%s%s",
+ prefix, stats[i].stat_string);
+ *p += ETH_GSTRING_LEN;
+ }
+}
+
static void fm10k_get_stat_strings(struct net_device *dev, u8 *data)
{
struct fm10k_intfc *interface = netdev_priv(dev);
struct fm10k_iov_data *iov_data = interface->iov_data;
char *p = (char *)data;
unsigned int i;
- unsigned int j;
- for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
- memcpy(p, fm10k_gstrings_net_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
+ fm10k_add_stat_strings(&p, "", fm10k_gstrings_net_stats,
+ FM10K_NETDEV_STATS_LEN);
- for (i = 0; i < FM10K_GLOBAL_STATS_LEN; i++) {
- memcpy(p, fm10k_gstrings_global_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
+ fm10k_add_stat_strings(&p, "", fm10k_gstrings_global_stats,
+ FM10K_GLOBAL_STATS_LEN);
- if (interface->flags & FM10K_FLAG_DEBUG_STATS) {
- for (i = 0; i < FM10K_DEBUG_STATS_LEN; i++) {
- memcpy(p, fm10k_gstrings_debug_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- }
+ if (interface->flags & FM10K_FLAG_DEBUG_STATS)
+ fm10k_add_stat_strings(&p, "", fm10k_gstrings_debug_stats,
+ FM10K_DEBUG_STATS_LEN);
- for (i = 0; i < FM10K_MBX_STATS_LEN; i++) {
- memcpy(p, fm10k_gstrings_mbx_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
+ fm10k_add_stat_strings(&p, "", fm10k_gstrings_mbx_stats,
+ FM10K_MBX_STATS_LEN);
- if (interface->hw.mac.type != fm10k_mac_vf) {
- for (i = 0; i < FM10K_PF_STATS_LEN; i++) {
- memcpy(p, fm10k_gstrings_pf_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- }
+ if (interface->hw.mac.type != fm10k_mac_vf)
+ fm10k_add_stat_strings(&p, "", fm10k_gstrings_pf_stats,
+ FM10K_PF_STATS_LEN);
if ((interface->flags & FM10K_FLAG_DEBUG_STATS) && iov_data) {
for (i = 0; i < iov_data->num_vfs; i++) {
- for (j = 0; j < FM10K_MBX_STATS_LEN; j++) {
- snprintf(p,
- ETH_GSTRING_LEN,
- "vf_%u_%s", i,
- fm10k_gstrings_mbx_stats[j].stat_string);
- p += ETH_GSTRING_LEN;
- }
+ char prefix[ETH_GSTRING_LEN];
+
+ snprintf(prefix, ETH_GSTRING_LEN, "vf_%u_", i);
+ fm10k_add_stat_strings(&p, prefix,
+ fm10k_gstrings_mbx_stats,
+ FM10K_MBX_STATS_LEN);
}
}
@@ -271,6 +265,41 @@ static int fm10k_get_sset_count(struct net_device *dev, int sset)
}
}
+static void fm10k_add_ethtool_stats(u64 **data, void *pointer,
+ const struct fm10k_stats stats[],
+ const unsigned int size)
+{
+ unsigned int i;
+ char *p;
+
+ /* simply skip forward if we were not given a valid pointer */
+ if (!pointer) {
+ *data += size;
+ return;
+ }
+
+ for (i = 0; i < size; i++) {
+ p = (char *)pointer + stats[i].stat_offset;
+
+ switch (stats[i].sizeof_stat) {
+ case sizeof(u64):
+ *((*data)++) = *(u64 *)p;
+ break;
+ case sizeof(u32):
+ *((*data)++) = *(u32 *)p;
+ break;
+ case sizeof(u16):
+ *((*data)++) = *(u16 *)p;
+ break;
+ case sizeof(u8):
+ *((*data)++) = *(u8 *)p;
+ break;
+ default:
+ *((*data)++) = 0;
+ }
+ }
+}
+
static void fm10k_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats __always_unused *stats,
u64 *data)
@@ -279,47 +308,29 @@ static void fm10k_get_ethtool_stats(struct net_device *netdev,
struct fm10k_intfc *interface = netdev_priv(netdev);
struct fm10k_iov_data *iov_data = interface->iov_data;
struct net_device_stats *net_stats = &netdev->stats;
- char *p;
int i, j;
fm10k_update_stats(interface);
- for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
- p = (char *)net_stats + fm10k_gstrings_net_stats[i].stat_offset;
- *(data++) = (fm10k_gstrings_net_stats[i].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
+ fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats,
+ FM10K_NETDEV_STATS_LEN);
- for (i = 0; i < FM10K_GLOBAL_STATS_LEN; i++) {
- p = (char *)interface +
- fm10k_gstrings_global_stats[i].stat_offset;
- *(data++) = (fm10k_gstrings_global_stats[i].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
+ fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats,
+ FM10K_GLOBAL_STATS_LEN);
- if (interface->flags & FM10K_FLAG_DEBUG_STATS) {
- for (i = 0; i < FM10K_DEBUG_STATS_LEN; i++) {
- p = (char *)interface +
- fm10k_gstrings_debug_stats[i].stat_offset;
- *(data++) = (fm10k_gstrings_debug_stats[i].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
- }
+ if (interface->flags & FM10K_FLAG_DEBUG_STATS)
+ fm10k_add_ethtool_stats(&data, interface,
+ fm10k_gstrings_debug_stats,
+ FM10K_DEBUG_STATS_LEN);
- for (i = 0; i < FM10K_MBX_STATS_LEN; i++) {
- p = (char *)&interface->hw.mbx +
- fm10k_gstrings_mbx_stats[i].stat_offset;
- *(data++) = (fm10k_gstrings_mbx_stats[i].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
+ fm10k_add_ethtool_stats(&data, &interface->hw.mbx,
+ fm10k_gstrings_mbx_stats,
+ FM10K_MBX_STATS_LEN);
if (interface->hw.mac.type != fm10k_mac_vf) {
- for (i = 0; i < FM10K_PF_STATS_LEN; i++) {
- p = (char *)interface +
- fm10k_gstrings_pf_stats[i].stat_offset;
- *(data++) = (fm10k_gstrings_pf_stats[i].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
+ fm10k_add_ethtool_stats(&data, interface,
+ fm10k_gstrings_pf_stats,
+ FM10K_PF_STATS_LEN);
}
if ((interface->flags & FM10K_FLAG_DEBUG_STATS) && iov_data) {
@@ -328,18 +339,9 @@ static void fm10k_get_ethtool_stats(struct net_device *netdev,
vf_info = &iov_data->vf_info[i];
- /* skip stats if we don't have a vf info */
- if (!vf_info) {
- data += FM10K_MBX_STATS_LEN;
- continue;
- }
-
- for (j = 0; j < FM10K_MBX_STATS_LEN; j++) {
- p = (char *)&vf_info->mbx +
- fm10k_gstrings_mbx_stats[j].stat_offset;
- *(data++) = (fm10k_gstrings_mbx_stats[j].sizeof_stat ==
- sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
- }
+ fm10k_add_ethtool_stats(&data, &vf_info->mbx,
+ fm10k_gstrings_mbx_stats,
+ FM10K_MBX_STATS_LEN);
}
}
--
2.5.5
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