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GET /api/1.1/patches/2230783/?format=api
{ "id": 2230783, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230783/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260430024945.3413973-16-wei.fang@nxp.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.1/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/" }, "msgid": "<20260430024945.3413973-16-wei.fang@nxp.com>", "date": "2026-04-30T02:49:45", "name": "[v5,net-next,15/15] net: dsa: netc: add support for ethtool private statistics", "commit_ref": null, "pull_url": null, "state": "handled-elsewhere", "archived": false, "hash": "7155bcc2a8d15f54032bab859cc0d9f49748f05a", "submitter": { "id": 84380, "url": "http://patchwork.ozlabs.org/api/1.1/people/84380/?format=api", "name": "Wei Fang", "email": "wei.fang@nxp.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260430024945.3413973-16-wei.fang@nxp.com/mbox/", "series": [ { "id": 502180, "url": "http://patchwork.ozlabs.org/api/1.1/series/502180/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=502180", "date": "2026-04-30T02:49:30", "name": "Add preliminary NETC switch support for i.MX94", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/502180/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230783/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230783/checks/", "tags": {}, "headers": { "Return-Path": "\n <linuxppc-dev+bounces-20318-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], 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lists.ozlabs.org" }, "content": "Implement the ethtool private statistics interface to expose additional\nport-level and MAC-level counters that are not covered by the standard\nIEEE 802.3 statistics. The pMAC counters are only reported when the port\nsupports Frame Preemption (802.1Qbu/802.3br).\n\nSigned-off-by: Wei Fang <wei.fang@nxp.com>\n---\n drivers/net/dsa/netc/netc_ethtool.c | 107 ++++++++++++++++++++++++++\n drivers/net/dsa/netc/netc_main.c | 3 +\n drivers/net/dsa/netc/netc_switch.h | 9 +++\n drivers/net/dsa/netc/netc_switch_hw.h | 58 ++++++++++++++\n 4 files changed, 177 insertions(+)", "diff": "diff --git a/drivers/net/dsa/netc/netc_ethtool.c b/drivers/net/dsa/netc/netc_ethtool.c\nindex ac8940b5a85c..8d04db534347 100644\n--- a/drivers/net/dsa/netc/netc_ethtool.c\n+++ b/drivers/net/dsa/netc/netc_ethtool.c\n@@ -19,6 +19,56 @@ static const struct ethtool_rmon_hist_range netc_rmon_ranges[] = {\n \t{ }\n };\n \n+static const struct netc_port_stat netc_port_counters[] = {\n+\t{ NETC_PTGSLACR,\t\"port gate late arrival frames\" },\n+\t{ NETC_PSDFTCR,\t\"port SDF transmit frames\" },\n+\t{ NETC_PSDFDDCR,\t\"port SDF drop duplicate frames\" },\n+\t{ NETC_PRXDCR,\t\t\"port rx discard frames\" },\n+\t{ NETC_PRXDCRRR,\t\"port rx discard read-reset\" },\n+\t{ NETC_PRXDCRR0,\t\"port rx discard reason 0\" },\n+\t{ NETC_PRXDCRR1,\t\"port rx discard reason 1\" },\n+\t{ NETC_PTXDCR,\t\t\"port tx discard frames\" },\n+\t{ NETC_PTXDCRRR,\t\"port tx discard read-reset\" },\n+\t{ NETC_PTXDCRR0,\t\"port tx discard reason 0\" },\n+\t{ NETC_PTXDCRR1,\t\"port tx discard reason 1\" },\n+\t{ NETC_BPDCR,\t\t\"bridge port discard frames\" },\n+\t{ NETC_BPDCRRR,\t\"bridge port discard read-reset\" },\n+\t{ NETC_BPDCRR0,\t\"bridge port discard reason 0\" },\n+\t{ NETC_BPDCRR1,\t\"bridge port discard reason 1\" },\n+};\n+\n+static const struct netc_port_stat netc_emac_counters[] = {\n+\t{ NETC_PM_ROCT(0),\t\"eMAC rx octets\" },\n+\t{ NETC_PM_RVLAN(0),\t\"eMAC rx VLAN frames\" },\n+\t{ NETC_PM_RERR(0),\t\"eMAC rx frame errors\" },\n+\t{ NETC_PM_RUCA(0),\t\"eMAC rx unicast frames\" },\n+\t{ NETC_PM_RDRP(0),\t\"eMAC rx dropped packets\" },\n+\t{ NETC_PM_RPKT(0),\t\"eMAC rx packets\" },\n+\t{ NETC_PM_TOCT(0),\t\"eMAC tx octets\" },\n+\t{ NETC_PM_TVLAN(0),\t\"eMAC tx VLAN frames\" },\n+\t{ NETC_PM_TFCS(0),\t\"eMAC tx FCS errors\" },\n+\t{ NETC_PM_TUCA(0),\t\"eMAC tx unicast frames\" },\n+\t{ NETC_PM_TPKT(0),\t\"eMAC tx packets\" },\n+\t{ NETC_PM_TUND(0),\t\"eMAC tx undersized packets\" },\n+\t{ NETC_PM_TIOCT(0),\t\"eMAC tx invalid octets\" },\n+};\n+\n+static const struct netc_port_stat netc_pmac_counters[] = {\n+\t{ NETC_PM_ROCT(1),\t\"pMAC rx octets\" },\n+\t{ NETC_PM_RVLAN(1),\t\"pMAC rx VLAN frames\" },\n+\t{ NETC_PM_RERR(1),\t\"pMAC rx frame errors\" },\n+\t{ NETC_PM_RUCA(1),\t\"pMAC rx unicast frames\" },\n+\t{ NETC_PM_RDRP(1),\t\"pMAC rx dropped packets\" },\n+\t{ NETC_PM_RPKT(1),\t\"pMAC rx packets\" },\n+\t{ NETC_PM_TOCT(1),\t\"pMAC tx octets\" },\n+\t{ NETC_PM_TVLAN(1),\t\"pMAC tx VLAN frames\" },\n+\t{ NETC_PM_TFCS(1),\t\"pMAC tx FCS errors\" },\n+\t{ NETC_PM_TUCA(1),\t\"pMAC tx unicast frames\" },\n+\t{ NETC_PM_TPKT(1),\t\"pMAC tx packets\" },\n+\t{ NETC_PM_TUND(1),\t\"pMAC tx undersized packets\" },\n+\t{ NETC_PM_TIOCT(1),\t\"pMAC tx invalid octets\" },\n+};\n+\n static void netc_port_pause_stats(struct netc_port *np, int mac,\n \t\t\t\t struct ethtool_pause_stats *stats)\n {\n@@ -188,3 +238,60 @@ void netc_port_get_eth_mac_stats(struct dsa_switch *ds, int port,\n \t\tbreak;\n \t}\n }\n+\n+int netc_port_get_sset_count(struct dsa_switch *ds, int port, int sset)\n+{\n+\tstruct netc_port *np = NETC_PORT(ds, port);\n+\tint size;\n+\n+\tif (sset != ETH_SS_STATS)\n+\t\treturn -EOPNOTSUPP;\n+\n+\tsize = ARRAY_SIZE(netc_port_counters) +\n+\t ARRAY_SIZE(netc_emac_counters);\n+\n+\tif (np->caps.pmac)\n+\t\tsize += ARRAY_SIZE(netc_pmac_counters);\n+\n+\treturn size;\n+}\n+\n+void netc_port_get_strings(struct dsa_switch *ds, int port,\n+\t\t\t u32 sset, u8 *data)\n+{\n+\tstruct netc_port *np = NETC_PORT(ds, port);\n+\tint i;\n+\n+\tif (sset != ETH_SS_STATS)\n+\t\treturn;\n+\n+\tfor (i = 0; i < ARRAY_SIZE(netc_port_counters); i++)\n+\t\tethtool_cpy(&data, netc_port_counters[i].name);\n+\n+\tfor (i = 0; i < ARRAY_SIZE(netc_emac_counters); i++)\n+\t\tethtool_cpy(&data, netc_emac_counters[i].name);\n+\n+\tif (!np->caps.pmac)\n+\t\treturn;\n+\n+\tfor (i = 0; i < ARRAY_SIZE(netc_pmac_counters); i++)\n+\t\tethtool_cpy(&data, netc_pmac_counters[i].name);\n+}\n+\n+void netc_port_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data)\n+{\n+\tstruct netc_port *np = NETC_PORT(ds, port);\n+\tint i;\n+\n+\tfor (i = 0; i < ARRAY_SIZE(netc_port_counters); i++)\n+\t\t*data++ = netc_port_rd(np, netc_port_counters[i].reg);\n+\n+\tfor (i = 0; i < ARRAY_SIZE(netc_emac_counters); i++)\n+\t\t*data++ = netc_port_rd64(np, netc_emac_counters[i].reg);\n+\n+\tif (!np->caps.pmac)\n+\t\treturn;\n+\n+\tfor (i = 0; i < ARRAY_SIZE(netc_pmac_counters); i++)\n+\t\t*data++ = netc_port_rd64(np, netc_pmac_counters[i].reg);\n+}\ndiff --git a/drivers/net/dsa/netc/netc_main.c b/drivers/net/dsa/netc/netc_main.c\nindex ae8f28b82b72..803582d939b0 100644\n--- a/drivers/net/dsa/netc/netc_main.c\n+++ b/drivers/net/dsa/netc/netc_main.c\n@@ -1472,6 +1472,9 @@ static const struct dsa_switch_ops netc_switch_ops = {\n \t.get_rmon_stats\t\t\t= netc_port_get_rmon_stats,\n \t.get_eth_ctrl_stats\t\t= netc_port_get_eth_ctrl_stats,\n \t.get_eth_mac_stats\t\t= netc_port_get_eth_mac_stats,\n+\t.get_sset_count\t\t\t= netc_port_get_sset_count,\n+\t.get_strings\t\t\t= netc_port_get_strings,\n+\t.get_ethtool_stats\t\t= netc_port_get_ethtool_stats,\n };\n \n static int netc_switch_probe(struct pci_dev *pdev,\ndiff --git a/drivers/net/dsa/netc/netc_switch.h b/drivers/net/dsa/netc/netc_switch.h\nindex d477b0cd2157..90d750331fb9 100644\n--- a/drivers/net/dsa/netc/netc_switch.h\n+++ b/drivers/net/dsa/netc/netc_switch.h\n@@ -93,6 +93,11 @@ struct netc_fdb_entry {\n \tstruct hlist_node node;\n };\n \n+struct netc_port_stat {\n+\tint reg;\n+\tchar name[ETH_GSTRING_LEN] __nonstring;\n+};\n+\n struct netc_switch {\n \tstruct pci_dev *pdev;\n \tstruct device *dev;\n@@ -159,5 +164,9 @@ void netc_port_get_eth_ctrl_stats(struct dsa_switch *ds, int port,\n \t\t\t\t struct ethtool_eth_ctrl_stats *ctrl_stats);\n void netc_port_get_eth_mac_stats(struct dsa_switch *ds, int port,\n \t\t\t\t struct ethtool_eth_mac_stats *mac_stats);\n+int netc_port_get_sset_count(struct dsa_switch *ds, int port, int sset);\n+void netc_port_get_strings(struct dsa_switch *ds, int port,\n+\t\t\t u32 sset, u8 *data);\n+void netc_port_get_ethtool_stats(struct dsa_switch *ds, int port, u64 *data);\n \n #endif\ndiff --git a/drivers/net/dsa/netc/netc_switch_hw.h b/drivers/net/dsa/netc/netc_switch_hw.h\nindex f8d436ad9623..1b016e7dd03e 100644\n--- a/drivers/net/dsa/netc/netc_switch_hw.h\n+++ b/drivers/net/dsa/netc/netc_switch_hw.h\n@@ -87,6 +87,17 @@\n #define PSR_TX_BUSY\t\t\tBIT(0)\n #define PSR_RX_BUSY\t\t\tBIT(1)\n \n+#define NETC_PTGSLACR\t\t\t0x130\n+\n+#define NETC_PRXDCR\t\t\t0x1c0\n+#define NETC_PRXDCRRR\t\t\t0x1c4\n+#define NETC_PRXDCRR0\t\t\t0x1c8\n+#define NETC_PRXDCRR1\t\t\t0x1cc\n+#define NETC_PTXDCR\t\t\t0x1e0\n+#define NETC_PTXDCRRR\t\t\t0x1e4\n+#define NETC_PTXDCRR0\t\t\t0x1e8\n+#define NETC_PTXDCRR1\t\t\t0x1ec\n+\n #define NETC_PTCTMSDUR(a)\t\t(0x208 + (a) * 0x20)\n #define PTCTMSDUR_MAXSDU\t\tGENMASK(15, 0)\n #define PTCTMSDUR_SDU_TYPE\t\tGENMASK(17, 16)\n@@ -94,6 +105,9 @@\n #define SDU_TYPE_MPDU\t\t\t1\n #define SDU_TYPE_MSDU\t\t\t2\n \n+#define NETC_PSDFTCR\t\t\t0x4c4\n+#define NETC_PSDFDDCR\t\t\t0x4c8\n+\n #define NETC_BPCR\t\t\t0x500\n #define BPCR_DYN_LIMIT\t\t\tGENMASK(15, 0)\n #define BPCR_MLO\t\t\tGENMASK(22, 20)\n@@ -142,6 +156,11 @@ enum netc_stg_stage {\n \tNETC_STG_STATE_FORWARDING,\n };\n \n+#define NETC_BPDCR\t\t\t0x580\n+#define NETC_BPDCRRR\t\t\t0x584\n+#define NETC_BPDCRR0\t\t\t0x588\n+#define NETC_BPDCRR1\t\t\t0x58c\n+\n /* Definition of Switch ethernet MAC port registers */\n #define NETC_PMAC_OFFSET\t\t0x400\n #define NETC_PM_CMD_CFG(a)\t\t(0x1008 + (a) * 0x400)\n@@ -176,6 +195,9 @@ enum netc_stg_stage {\n /* Port MAC 0/1 Receive Ethernet Octets Counter */\n #define NETC_PM_REOCT(a)\t\t(0x1100 + (a) * 0x400)\n \n+/* Port MAC 0/1 Receive Octets Counter */\n+#define NETC_PM_ROCT(a)\t\t\t(0x1108 + (a) * 0x400)\n+\n /* Port MAC 0/1 Receive Alignment Error Counter Register */\n #define NETC_PM_RALN(a)\t\t\t(0x1110 + (a) * 0x400)\n \n@@ -188,12 +210,27 @@ enum netc_stg_stage {\n /* Port MAC 0/1 Receive Frame Check Sequence Error Counter */\n #define NETC_PM_RFCS(a)\t\t\t(0x1128 + (a) * 0x400)\n \n+/* Port MAC 0/1 Receive VLAN Frame Counter */\n+#define NETC_PM_RVLAN(a)\t\t(0x1130 + (a) * 0x400)\n+\n+/* Port MAC 0/1 Receive Frame Error Counter */\n+#define NETC_PM_RERR(a)\t\t\t(0x1138 + (a) * 0x400)\n+\n+/* Port MAC 0/1 Receive Unicast Frame Counter */\n+#define NETC_PM_RUCA(a)\t\t\t(0x1140 + (a) * 0x400)\n+\n /* Port MAC 0/1 Receive Multicast Frame Counter */\n #define NETC_PM_RMCA(a)\t\t\t(0x1148 + (a) * 0x400)\n \n /* Port MAC 0/1 Receive Broadcast Frame Counter */\n #define NETC_PM_RBCA(a)\t\t\t(0x1150 + (a) * 0x400)\n \n+/* Port MAC 0/1 Receive Dropped Packets Counter */\n+#define NETC_PM_RDRP(a)\t\t\t(0x1158 + (a) * 0x400)\n+\n+/* Port MAC 0/1 Receive Packets Counter */\n+#define NETC_PM_RPKT(a)\t\t\t(0x1160 + (a) * 0x400)\n+\n /* Port MAC 0/1 Receive Undersized Packet Counter */\n #define NETC_PM_RUND(a)\t\t\t(0x1168 + (a) * 0x400)\n \n@@ -236,6 +273,9 @@ enum netc_stg_stage {\n /* Port MAC 0/1 Transmit Ethernet Octets Counter */\n #define NETC_PM_TEOCT(a)\t\t(0x1200 + (a) * 0x400)\n \n+/* Port MAC 0/1 Transmit Octets Counter */\n+#define NETC_PM_TOCT(a)\t\t\t(0x1208 + (a) * 0x400)\n+\n /* Port MAC 0/1 Transmit Excessive Deferral Packet Counter */\n #define NETC_PM_TEDFR(a)\t\t(0x1210 + (a) * 0x400)\n \n@@ -245,15 +285,30 @@ enum netc_stg_stage {\n /* Port MAC 0/1 Transmit Frame Counter */\n #define NETC_PM_TFRM(a)\t\t\t(0x1220 + (a) * 0x400)\n \n+/* Port MAC 0/1 Transmit Frame Check Sequence Error Counter */\n+#define NETC_PM_TFCS(a)\t\t\t(0x1228 + (a) * 0x400)\n+\n+/* Port MAC 0/1 Transmit VLAN Frame Counter */\n+#define NETC_PM_TVLAN(a)\t\t(0x1230 + (a) * 0x400)\n+\n /* Port MAC 0/1 Transmit Frame Error Counter */\n #define NETC_PM_TERR(a)\t\t\t(0x1238 + (a) * 0x400)\n \n+/* Port MAC 0/1 Transmit Unicast Frame Counter */\n+#define NETC_PM_TUCA(a)\t\t\t(0x1240 + (a) * 0x400)\n+\n /* Port MAC 0/1 Transmit Multicast Frame Counter */\n #define NETC_PM_TMCA(a)\t\t\t(0x1248 + (a) * 0x400)\n \n /* Port MAC 0/1 Transmit Broadcast Frame Counter */\n #define NETC_PM_TBCA(a)\t\t\t(0x1250 + (a) * 0x400)\n \n+/* Port MAC 0/1 Transmit Packets Counter */\n+#define NETC_PM_TPKT(a)\t\t\t(0x1260 + (a) * 0x400)\n+\n+/* Port MAC 0/1 Transmit Undersized Packet Counter */\n+#define NETC_PM_TUND(a)\t\t\t(0x1268 + (a) * 0x400)\n+\n /* Port MAC 0/1 Transmit 64-Octet Packet Counter */\n #define NETC_PM_T64(a)\t\t\t(0x1270 + (a) * 0x400)\n \n@@ -293,6 +348,9 @@ enum netc_stg_stage {\n /* Port MAC 0/1 Transmit Excessive Collisions Counter */\n #define NETC_PM_TECOL(a)\t\t(0x12f0 + (a) * 0x400)\n \n+/* Port MAC 0/1 Transmit Invalid Octets Counter */\n+#define NETC_PM_TIOCT(a)\t\t(0x12f8 + (a) * 0x400)\n+\n #define NETC_PEMDIOCR\t\t\t0x1c00\n #define NETC_EMDIO_BASE\t\t\tNETC_PEMDIOCR\n \n", "prefixes": [ "v5", "net-next", "15/15" ] }