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[v2,net-next,04/26] dpaa2: implement generic XDP stats callbacks

Message ID 20211123163955.154512-5-alexandr.lobakin@intel.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series net: introduce and use generic XDP stats | expand

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Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count fail Series longer than 15 patches (and no cover letter)
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 14 of 14 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 57 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Alexander Lobakin Nov. 23, 2021, 4:39 p.m. UTC
Add an ability to dpaa2 to query its 5 per-channel XDP counters
using generic XDP stats infra.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
---
 .../net/ethernet/freescale/dpaa2/dpaa2-eth.c  | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)

--
2.33.1
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Patch

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index 6451c8383639..7715aecedacc 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -1973,6 +1973,49 @@  static void dpaa2_eth_get_stats(struct net_device *net_dev,
 	}
 }

+static int dpaa2_eth_get_xdp_stats_nch(const struct net_device *net_dev,
+				       u32 attr_id)
+{
+	const struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+	switch (attr_id) {
+	case IFLA_XDP_XSTATS_TYPE_XDP:
+		return priv->num_channels;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int dpaa2_eth_get_xdp_stats(const struct net_device *net_dev,
+				   u32 attr_id, void *attr_data)
+{
+	const struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	struct ifla_xdp_stats *xdp_stats = attr_data;
+	u32 i;
+
+	switch (attr_id) {
+	case IFLA_XDP_XSTATS_TYPE_XDP:
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	for (i = 0; i < priv->num_channels; i++) {
+		const struct dpaa2_eth_ch_stats *ch_stats;
+
+		ch_stats = &priv->channel[i]->stats;
+
+		xdp_stats->drop = ch_stats->xdp_drop;
+		xdp_stats->redirect = ch_stats->xdp_redirect;
+		xdp_stats->tx = ch_stats->xdp_tx;
+		xdp_stats->tx_errors = ch_stats->xdp_tx_err;
+
+		xdp_stats++;
+	}
+
+	return 0;
+}
+
 /* Copy mac unicast addresses from @net_dev to @priv.
  * Its sole purpose is to make dpaa2_eth_set_rx_mode() more readable.
  */
@@ -2601,6 +2644,8 @@  static const struct net_device_ops dpaa2_eth_ops = {
 	.ndo_stop = dpaa2_eth_stop,
 	.ndo_set_mac_address = dpaa2_eth_set_addr,
 	.ndo_get_stats64 = dpaa2_eth_get_stats,
+	.ndo_get_xdp_stats_nch = dpaa2_eth_get_xdp_stats_nch,
+	.ndo_get_xdp_stats = dpaa2_eth_get_xdp_stats,
 	.ndo_set_rx_mode = dpaa2_eth_set_rx_mode,
 	.ndo_set_features = dpaa2_eth_set_features,
 	.ndo_eth_ioctl = dpaa2_eth_ioctl,