1e5b845dcSCatherine Sullivan // SPDX-License-Identifier: (GPL-2.0 OR MIT) 2e5b845dcSCatherine Sullivan /* Google virtual Ethernet (gve) driver 3e5b845dcSCatherine Sullivan * 4e5b845dcSCatherine Sullivan * Copyright (C) 2015-2019 Google, Inc. 5e5b845dcSCatherine Sullivan */ 6e5b845dcSCatherine Sullivan 7cc69837fSJakub Kicinski #include <linux/ethtool.h> 8e5b845dcSCatherine Sullivan #include <linux/rtnetlink.h> 9e5b845dcSCatherine Sullivan #include "gve.h" 1024aeb56fSKuo Zhao #include "gve_adminq.h" 11e5b845dcSCatherine Sullivan 12e5b845dcSCatherine Sullivan static void gve_get_drvinfo(struct net_device *netdev, 13e5b845dcSCatherine Sullivan struct ethtool_drvinfo *info) 14e5b845dcSCatherine Sullivan { 15e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 16e5b845dcSCatherine Sullivan 17*c32773c9SDaode Huang strscpy(info->driver, "gve", sizeof(info->driver)); 18*c32773c9SDaode Huang strscpy(info->version, gve_version_str, sizeof(info->version)); 19*c32773c9SDaode Huang strscpy(info->bus_info, pci_name(priv->pdev), sizeof(info->bus_info)); 20e5b845dcSCatherine Sullivan } 21e5b845dcSCatherine Sullivan 22e5b845dcSCatherine Sullivan static void gve_set_msglevel(struct net_device *netdev, u32 value) 23e5b845dcSCatherine Sullivan { 24e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 25e5b845dcSCatherine Sullivan 26e5b845dcSCatherine Sullivan priv->msg_enable = value; 27e5b845dcSCatherine Sullivan } 28e5b845dcSCatherine Sullivan 29e5b845dcSCatherine Sullivan static u32 gve_get_msglevel(struct net_device *netdev) 30e5b845dcSCatherine Sullivan { 31e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 32e5b845dcSCatherine Sullivan 33e5b845dcSCatherine Sullivan return priv->msg_enable; 34e5b845dcSCatherine Sullivan } 35e5b845dcSCatherine Sullivan 36e5b845dcSCatherine Sullivan static const char gve_gstrings_main_stats[][ETH_GSTRING_LEN] = { 37e5b845dcSCatherine Sullivan "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", 38e5b845dcSCatherine Sullivan "rx_dropped", "tx_dropped", "tx_timeouts", 39433e274bSKuo Zhao "rx_skb_alloc_fail", "rx_buf_alloc_fail", "rx_desc_err_dropped_pkt", 40433e274bSKuo Zhao "interface_up_cnt", "interface_down_cnt", "reset_cnt", 4124aeb56fSKuo Zhao "page_alloc_fail", "dma_mapping_error", "stats_report_trigger_cnt", 42433e274bSKuo Zhao }; 43433e274bSKuo Zhao 44433e274bSKuo Zhao static const char gve_gstrings_rx_stats[][ETH_GSTRING_LEN] = { 45433e274bSKuo Zhao "rx_posted_desc[%u]", "rx_completed_desc[%u]", "rx_bytes[%u]", 46433e274bSKuo Zhao "rx_dropped_pkt[%u]", "rx_copybreak_pkt[%u]", "rx_copied_pkt[%u]", 472f523dc3SDavid Awogbemila "rx_queue_drop_cnt[%u]", "rx_no_buffers_posted[%u]", 482f523dc3SDavid Awogbemila "rx_drops_packet_over_mru[%u]", "rx_drops_invalid_checksum[%u]", 49433e274bSKuo Zhao }; 50433e274bSKuo Zhao 51433e274bSKuo Zhao static const char gve_gstrings_tx_stats[][ETH_GSTRING_LEN] = { 52433e274bSKuo Zhao "tx_posted_desc[%u]", "tx_completed_desc[%u]", "tx_bytes[%u]", 53433e274bSKuo Zhao "tx_wake[%u]", "tx_stop[%u]", "tx_event_counter[%u]", 546f007c64SCatherine Sullivan "tx_dma_mapping_error[%u]", 55433e274bSKuo Zhao }; 56433e274bSKuo Zhao 57433e274bSKuo Zhao static const char gve_gstrings_adminq_stats[][ETH_GSTRING_LEN] = { 58433e274bSKuo Zhao "adminq_prod_cnt", "adminq_cmd_fail", "adminq_timeouts", 59433e274bSKuo Zhao "adminq_describe_device_cnt", "adminq_cfg_device_resources_cnt", 60433e274bSKuo Zhao "adminq_register_page_list_cnt", "adminq_unregister_page_list_cnt", 61433e274bSKuo Zhao "adminq_create_tx_queue_cnt", "adminq_create_rx_queue_cnt", 62433e274bSKuo Zhao "adminq_destroy_tx_queue_cnt", "adminq_destroy_rx_queue_cnt", 63433e274bSKuo Zhao "adminq_dcfg_device_resources_cnt", "adminq_set_driver_parameter_cnt", 647e074d5aSDavid Awogbemila "adminq_report_stats_cnt", "adminq_report_link_speed_cnt" 6524aeb56fSKuo Zhao }; 6624aeb56fSKuo Zhao 6724aeb56fSKuo Zhao static const char gve_gstrings_priv_flags[][ETH_GSTRING_LEN] = { 6824aeb56fSKuo Zhao "report-stats", 69e5b845dcSCatherine Sullivan }; 70e5b845dcSCatherine Sullivan 71e5b845dcSCatherine Sullivan #define GVE_MAIN_STATS_LEN ARRAY_SIZE(gve_gstrings_main_stats) 72433e274bSKuo Zhao #define GVE_ADMINQ_STATS_LEN ARRAY_SIZE(gve_gstrings_adminq_stats) 73433e274bSKuo Zhao #define NUM_GVE_TX_CNTS ARRAY_SIZE(gve_gstrings_tx_stats) 74433e274bSKuo Zhao #define NUM_GVE_RX_CNTS ARRAY_SIZE(gve_gstrings_rx_stats) 7524aeb56fSKuo Zhao #define GVE_PRIV_FLAGS_STR_LEN ARRAY_SIZE(gve_gstrings_priv_flags) 76e5b845dcSCatherine Sullivan 77e5b845dcSCatherine Sullivan static void gve_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 78e5b845dcSCatherine Sullivan { 79e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 80e5b845dcSCatherine Sullivan char *s = (char *)data; 81433e274bSKuo Zhao int i, j; 82e5b845dcSCatherine Sullivan 8324aeb56fSKuo Zhao switch (stringset) { 8424aeb56fSKuo Zhao case ETH_SS_STATS: 85e5b845dcSCatherine Sullivan memcpy(s, *gve_gstrings_main_stats, 86e5b845dcSCatherine Sullivan sizeof(gve_gstrings_main_stats)); 87e5b845dcSCatherine Sullivan s += sizeof(gve_gstrings_main_stats); 8824aeb56fSKuo Zhao 89e5b845dcSCatherine Sullivan for (i = 0; i < priv->rx_cfg.num_queues; i++) { 90433e274bSKuo Zhao for (j = 0; j < NUM_GVE_RX_CNTS; j++) { 9124aeb56fSKuo Zhao snprintf(s, ETH_GSTRING_LEN, 9224aeb56fSKuo Zhao gve_gstrings_rx_stats[j], i); 93e5b845dcSCatherine Sullivan s += ETH_GSTRING_LEN; 94433e274bSKuo Zhao } 95e5b845dcSCatherine Sullivan } 9624aeb56fSKuo Zhao 97e5b845dcSCatherine Sullivan for (i = 0; i < priv->tx_cfg.num_queues; i++) { 98433e274bSKuo Zhao for (j = 0; j < NUM_GVE_TX_CNTS; j++) { 9924aeb56fSKuo Zhao snprintf(s, ETH_GSTRING_LEN, 10024aeb56fSKuo Zhao gve_gstrings_tx_stats[j], i); 101e5b845dcSCatherine Sullivan s += ETH_GSTRING_LEN; 102e5b845dcSCatherine Sullivan } 103e5b845dcSCatherine Sullivan } 104e5b845dcSCatherine Sullivan 105433e274bSKuo Zhao memcpy(s, *gve_gstrings_adminq_stats, 106433e274bSKuo Zhao sizeof(gve_gstrings_adminq_stats)); 107433e274bSKuo Zhao s += sizeof(gve_gstrings_adminq_stats); 10824aeb56fSKuo Zhao break; 10924aeb56fSKuo Zhao 11024aeb56fSKuo Zhao case ETH_SS_PRIV_FLAGS: 11124aeb56fSKuo Zhao memcpy(s, *gve_gstrings_priv_flags, 11224aeb56fSKuo Zhao sizeof(gve_gstrings_priv_flags)); 11324aeb56fSKuo Zhao s += sizeof(gve_gstrings_priv_flags); 11424aeb56fSKuo Zhao break; 11524aeb56fSKuo Zhao 11624aeb56fSKuo Zhao default: 11724aeb56fSKuo Zhao break; 11824aeb56fSKuo Zhao } 119433e274bSKuo Zhao } 120433e274bSKuo Zhao 121e5b845dcSCatherine Sullivan static int gve_get_sset_count(struct net_device *netdev, int sset) 122e5b845dcSCatherine Sullivan { 123e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 124e5b845dcSCatherine Sullivan 125e5b845dcSCatherine Sullivan switch (sset) { 126e5b845dcSCatherine Sullivan case ETH_SS_STATS: 127433e274bSKuo Zhao return GVE_MAIN_STATS_LEN + GVE_ADMINQ_STATS_LEN + 128e5b845dcSCatherine Sullivan (priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS) + 129e5b845dcSCatherine Sullivan (priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS); 13024aeb56fSKuo Zhao case ETH_SS_PRIV_FLAGS: 13124aeb56fSKuo Zhao return GVE_PRIV_FLAGS_STR_LEN; 132e5b845dcSCatherine Sullivan default: 133e5b845dcSCatherine Sullivan return -EOPNOTSUPP; 134e5b845dcSCatherine Sullivan } 135e5b845dcSCatherine Sullivan } 136e5b845dcSCatherine Sullivan 137e5b845dcSCatherine Sullivan static void 138e5b845dcSCatherine Sullivan gve_get_ethtool_stats(struct net_device *netdev, 139e5b845dcSCatherine Sullivan struct ethtool_stats *stats, u64 *data) 140e5b845dcSCatherine Sullivan { 141433e274bSKuo Zhao u64 tmp_rx_pkts, tmp_rx_bytes, tmp_rx_skb_alloc_fail, tmp_rx_buf_alloc_fail, 142433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt, tmp_tx_pkts, tmp_tx_bytes; 143433e274bSKuo Zhao u64 rx_buf_alloc_fail, rx_desc_err_dropped_pkt, rx_pkts, 144433e274bSKuo Zhao rx_skb_alloc_fail, rx_bytes, tx_pkts, tx_bytes; 1452f523dc3SDavid Awogbemila int stats_idx, base_stats_idx, max_stats_idx; 1462f523dc3SDavid Awogbemila struct stats *report_stats; 1472f523dc3SDavid Awogbemila int *rx_qid_to_stats_idx; 1482f523dc3SDavid Awogbemila int *tx_qid_to_stats_idx; 149433e274bSKuo Zhao struct gve_priv *priv; 1502f523dc3SDavid Awogbemila bool skip_nic_stats; 151e5b845dcSCatherine Sullivan unsigned int start; 152e5b845dcSCatherine Sullivan int ring; 1532f523dc3SDavid Awogbemila int i, j; 154e5b845dcSCatherine Sullivan 155e5b845dcSCatherine Sullivan ASSERT_RTNL(); 156e5b845dcSCatherine Sullivan 157433e274bSKuo Zhao priv = netdev_priv(netdev); 1582f523dc3SDavid Awogbemila report_stats = priv->stats_report->stats; 1592f523dc3SDavid Awogbemila rx_qid_to_stats_idx = kmalloc_array(priv->rx_cfg.num_queues, 1602f523dc3SDavid Awogbemila sizeof(int), GFP_KERNEL); 1612f523dc3SDavid Awogbemila if (!rx_qid_to_stats_idx) 1622f523dc3SDavid Awogbemila return; 1632f523dc3SDavid Awogbemila tx_qid_to_stats_idx = kmalloc_array(priv->tx_cfg.num_queues, 1642f523dc3SDavid Awogbemila sizeof(int), GFP_KERNEL); 1652f523dc3SDavid Awogbemila if (!tx_qid_to_stats_idx) { 1662f523dc3SDavid Awogbemila kfree(rx_qid_to_stats_idx); 1672f523dc3SDavid Awogbemila return; 1682f523dc3SDavid Awogbemila } 169433e274bSKuo Zhao for (rx_pkts = 0, rx_bytes = 0, rx_skb_alloc_fail = 0, 170433e274bSKuo Zhao rx_buf_alloc_fail = 0, rx_desc_err_dropped_pkt = 0, ring = 0; 171e5b845dcSCatherine Sullivan ring < priv->rx_cfg.num_queues; ring++) { 172e5b845dcSCatherine Sullivan if (priv->rx) { 173e5b845dcSCatherine Sullivan do { 174433e274bSKuo Zhao struct gve_rx_ring *rx = &priv->rx[ring]; 175433e274bSKuo Zhao 1763c13ce74SCatherine Sullivan start = 177e5b845dcSCatherine Sullivan u64_stats_fetch_begin(&priv->rx[ring].statss); 178433e274bSKuo Zhao tmp_rx_pkts = rx->rpackets; 179433e274bSKuo Zhao tmp_rx_bytes = rx->rbytes; 180433e274bSKuo Zhao tmp_rx_skb_alloc_fail = rx->rx_skb_alloc_fail; 181433e274bSKuo Zhao tmp_rx_buf_alloc_fail = rx->rx_buf_alloc_fail; 182433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt = 183433e274bSKuo Zhao rx->rx_desc_err_dropped_pkt; 184e5b845dcSCatherine Sullivan } while (u64_stats_fetch_retry(&priv->rx[ring].statss, 185e5b845dcSCatherine Sullivan start)); 186433e274bSKuo Zhao rx_pkts += tmp_rx_pkts; 187433e274bSKuo Zhao rx_bytes += tmp_rx_bytes; 188433e274bSKuo Zhao rx_skb_alloc_fail += tmp_rx_skb_alloc_fail; 189433e274bSKuo Zhao rx_buf_alloc_fail += tmp_rx_buf_alloc_fail; 190433e274bSKuo Zhao rx_desc_err_dropped_pkt += tmp_rx_desc_err_dropped_pkt; 191e5b845dcSCatherine Sullivan } 192e5b845dcSCatherine Sullivan } 193e5b845dcSCatherine Sullivan for (tx_pkts = 0, tx_bytes = 0, ring = 0; 194e5b845dcSCatherine Sullivan ring < priv->tx_cfg.num_queues; ring++) { 195e5b845dcSCatherine Sullivan if (priv->tx) { 196e5b845dcSCatherine Sullivan do { 1973c13ce74SCatherine Sullivan start = 198e5b845dcSCatherine Sullivan u64_stats_fetch_begin(&priv->tx[ring].statss); 199433e274bSKuo Zhao tmp_tx_pkts = priv->tx[ring].pkt_done; 200433e274bSKuo Zhao tmp_tx_bytes = priv->tx[ring].bytes_done; 201e5b845dcSCatherine Sullivan } while (u64_stats_fetch_retry(&priv->tx[ring].statss, 202e5b845dcSCatherine Sullivan start)); 203433e274bSKuo Zhao tx_pkts += tmp_tx_pkts; 204433e274bSKuo Zhao tx_bytes += tmp_tx_bytes; 205e5b845dcSCatherine Sullivan } 206e5b845dcSCatherine Sullivan } 207e5b845dcSCatherine Sullivan 208e5b845dcSCatherine Sullivan i = 0; 209e5b845dcSCatherine Sullivan data[i++] = rx_pkts; 210e5b845dcSCatherine Sullivan data[i++] = tx_pkts; 211e5b845dcSCatherine Sullivan data[i++] = rx_bytes; 212e5b845dcSCatherine Sullivan data[i++] = tx_bytes; 213433e274bSKuo Zhao /* total rx dropped packets */ 214433e274bSKuo Zhao data[i++] = rx_skb_alloc_fail + rx_buf_alloc_fail + 215433e274bSKuo Zhao rx_desc_err_dropped_pkt; 216433e274bSKuo Zhao /* Skip tx_dropped */ 217433e274bSKuo Zhao i++; 218433e274bSKuo Zhao 219e5b845dcSCatherine Sullivan data[i++] = priv->tx_timeo_cnt; 220433e274bSKuo Zhao data[i++] = rx_skb_alloc_fail; 221433e274bSKuo Zhao data[i++] = rx_buf_alloc_fail; 222433e274bSKuo Zhao data[i++] = rx_desc_err_dropped_pkt; 223433e274bSKuo Zhao data[i++] = priv->interface_up_cnt; 224433e274bSKuo Zhao data[i++] = priv->interface_down_cnt; 225433e274bSKuo Zhao data[i++] = priv->reset_cnt; 226433e274bSKuo Zhao data[i++] = priv->page_alloc_fail; 227433e274bSKuo Zhao data[i++] = priv->dma_mapping_error; 22824aeb56fSKuo Zhao data[i++] = priv->stats_report_trigger_cnt; 229e5b845dcSCatherine Sullivan i = GVE_MAIN_STATS_LEN; 230e5b845dcSCatherine Sullivan 2312f523dc3SDavid Awogbemila /* For rx cross-reporting stats, start from nic rx stats in report */ 2322f523dc3SDavid Awogbemila base_stats_idx = GVE_TX_STATS_REPORT_NUM * priv->tx_cfg.num_queues + 2332f523dc3SDavid Awogbemila GVE_RX_STATS_REPORT_NUM * priv->rx_cfg.num_queues; 2342f523dc3SDavid Awogbemila max_stats_idx = NIC_RX_STATS_REPORT_NUM * priv->rx_cfg.num_queues + 2352f523dc3SDavid Awogbemila base_stats_idx; 2362f523dc3SDavid Awogbemila /* Preprocess the stats report for rx, map queue id to start index */ 2372f523dc3SDavid Awogbemila skip_nic_stats = false; 2382f523dc3SDavid Awogbemila for (stats_idx = base_stats_idx; stats_idx < max_stats_idx; 2392f523dc3SDavid Awogbemila stats_idx += NIC_RX_STATS_REPORT_NUM) { 2402f523dc3SDavid Awogbemila u32 stat_name = be32_to_cpu(report_stats[stats_idx].stat_name); 2412f523dc3SDavid Awogbemila u32 queue_id = be32_to_cpu(report_stats[stats_idx].queue_id); 2422f523dc3SDavid Awogbemila 2432f523dc3SDavid Awogbemila if (stat_name == 0) { 2442f523dc3SDavid Awogbemila /* no stats written by NIC yet */ 2452f523dc3SDavid Awogbemila skip_nic_stats = true; 2462f523dc3SDavid Awogbemila break; 2472f523dc3SDavid Awogbemila } 2482f523dc3SDavid Awogbemila rx_qid_to_stats_idx[queue_id] = stats_idx; 2492f523dc3SDavid Awogbemila } 250e5b845dcSCatherine Sullivan /* walk RX rings */ 251e5b845dcSCatherine Sullivan if (priv->rx) { 252e5b845dcSCatherine Sullivan for (ring = 0; ring < priv->rx_cfg.num_queues; ring++) { 253e5b845dcSCatherine Sullivan struct gve_rx_ring *rx = &priv->rx[ring]; 254e5b845dcSCatherine Sullivan 255438b43bdSCatherine Sullivan data[i++] = rx->fill_cnt; 256433e274bSKuo Zhao data[i++] = rx->cnt; 257433e274bSKuo Zhao do { 258433e274bSKuo Zhao start = 259433e274bSKuo Zhao u64_stats_fetch_begin(&priv->rx[ring].statss); 260433e274bSKuo Zhao tmp_rx_bytes = rx->rbytes; 261433e274bSKuo Zhao tmp_rx_skb_alloc_fail = rx->rx_skb_alloc_fail; 262433e274bSKuo Zhao tmp_rx_buf_alloc_fail = rx->rx_buf_alloc_fail; 263433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt = 264433e274bSKuo Zhao rx->rx_desc_err_dropped_pkt; 265433e274bSKuo Zhao } while (u64_stats_fetch_retry(&priv->rx[ring].statss, 266433e274bSKuo Zhao start)); 267433e274bSKuo Zhao data[i++] = tmp_rx_bytes; 268433e274bSKuo Zhao /* rx dropped packets */ 269433e274bSKuo Zhao data[i++] = tmp_rx_skb_alloc_fail + 270433e274bSKuo Zhao tmp_rx_buf_alloc_fail + 271433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt; 272433e274bSKuo Zhao data[i++] = rx->rx_copybreak_pkt; 273433e274bSKuo Zhao data[i++] = rx->rx_copied_pkt; 2742f523dc3SDavid Awogbemila /* stats from NIC */ 2752f523dc3SDavid Awogbemila if (skip_nic_stats) { 2762f523dc3SDavid Awogbemila /* skip NIC rx stats */ 2772f523dc3SDavid Awogbemila i += NIC_RX_STATS_REPORT_NUM; 2782f523dc3SDavid Awogbemila continue; 2792f523dc3SDavid Awogbemila } 2802f523dc3SDavid Awogbemila for (j = 0; j < NIC_RX_STATS_REPORT_NUM; j++) { 2812f523dc3SDavid Awogbemila u64 value = 2822f523dc3SDavid Awogbemila be64_to_cpu(report_stats[rx_qid_to_stats_idx[ring] + j].value); 2832f523dc3SDavid Awogbemila 2842f523dc3SDavid Awogbemila data[i++] = value; 2852f523dc3SDavid Awogbemila } 286e5b845dcSCatherine Sullivan } 287e5b845dcSCatherine Sullivan } else { 288e5b845dcSCatherine Sullivan i += priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS; 289e5b845dcSCatherine Sullivan } 2902f523dc3SDavid Awogbemila 2912f523dc3SDavid Awogbemila /* For tx cross-reporting stats, start from nic tx stats in report */ 2922f523dc3SDavid Awogbemila base_stats_idx = max_stats_idx; 2932f523dc3SDavid Awogbemila max_stats_idx = NIC_TX_STATS_REPORT_NUM * priv->tx_cfg.num_queues + 2942f523dc3SDavid Awogbemila max_stats_idx; 2952f523dc3SDavid Awogbemila /* Preprocess the stats report for tx, map queue id to start index */ 2962f523dc3SDavid Awogbemila skip_nic_stats = false; 2972f523dc3SDavid Awogbemila for (stats_idx = base_stats_idx; stats_idx < max_stats_idx; 2982f523dc3SDavid Awogbemila stats_idx += NIC_TX_STATS_REPORT_NUM) { 2992f523dc3SDavid Awogbemila u32 stat_name = be32_to_cpu(report_stats[stats_idx].stat_name); 3002f523dc3SDavid Awogbemila u32 queue_id = be32_to_cpu(report_stats[stats_idx].queue_id); 3012f523dc3SDavid Awogbemila 3022f523dc3SDavid Awogbemila if (stat_name == 0) { 3032f523dc3SDavid Awogbemila /* no stats written by NIC yet */ 3042f523dc3SDavid Awogbemila skip_nic_stats = true; 3052f523dc3SDavid Awogbemila break; 3062f523dc3SDavid Awogbemila } 3072f523dc3SDavid Awogbemila tx_qid_to_stats_idx[queue_id] = stats_idx; 3082f523dc3SDavid Awogbemila } 309e5b845dcSCatherine Sullivan /* walk TX rings */ 310e5b845dcSCatherine Sullivan if (priv->tx) { 311e5b845dcSCatherine Sullivan for (ring = 0; ring < priv->tx_cfg.num_queues; ring++) { 312e5b845dcSCatherine Sullivan struct gve_tx_ring *tx = &priv->tx[ring]; 313e5b845dcSCatherine Sullivan 314e5b845dcSCatherine Sullivan data[i++] = tx->req; 315e5b845dcSCatherine Sullivan data[i++] = tx->done; 316433e274bSKuo Zhao do { 317433e274bSKuo Zhao start = 318433e274bSKuo Zhao u64_stats_fetch_begin(&priv->tx[ring].statss); 319433e274bSKuo Zhao tmp_tx_bytes = tx->bytes_done; 320433e274bSKuo Zhao } while (u64_stats_fetch_retry(&priv->tx[ring].statss, 321433e274bSKuo Zhao start)); 322433e274bSKuo Zhao data[i++] = tmp_tx_bytes; 323e5b845dcSCatherine Sullivan data[i++] = tx->wake_queue; 324e5b845dcSCatherine Sullivan data[i++] = tx->stop_queue; 325e5b845dcSCatherine Sullivan data[i++] = be32_to_cpu(gve_tx_load_event_counter(priv, 326e5b845dcSCatherine Sullivan tx)); 3276f007c64SCatherine Sullivan data[i++] = tx->dma_mapping_error; 3282f523dc3SDavid Awogbemila /* stats from NIC */ 3292f523dc3SDavid Awogbemila if (skip_nic_stats) { 3302f523dc3SDavid Awogbemila /* skip NIC tx stats */ 3312f523dc3SDavid Awogbemila i += NIC_TX_STATS_REPORT_NUM; 3322f523dc3SDavid Awogbemila continue; 3332f523dc3SDavid Awogbemila } 3342f523dc3SDavid Awogbemila for (j = 0; j < NIC_TX_STATS_REPORT_NUM; j++) { 3352f523dc3SDavid Awogbemila u64 value = 3362f523dc3SDavid Awogbemila be64_to_cpu(report_stats[tx_qid_to_stats_idx[ring] + j].value); 3372f523dc3SDavid Awogbemila data[i++] = value; 3382f523dc3SDavid Awogbemila } 339e5b845dcSCatherine Sullivan } 340e5b845dcSCatherine Sullivan } else { 341e5b845dcSCatherine Sullivan i += priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS; 342e5b845dcSCatherine Sullivan } 3432f523dc3SDavid Awogbemila 3442f523dc3SDavid Awogbemila kfree(rx_qid_to_stats_idx); 3452f523dc3SDavid Awogbemila kfree(tx_qid_to_stats_idx); 346433e274bSKuo Zhao /* AQ Stats */ 347433e274bSKuo Zhao data[i++] = priv->adminq_prod_cnt; 348433e274bSKuo Zhao data[i++] = priv->adminq_cmd_fail; 349433e274bSKuo Zhao data[i++] = priv->adminq_timeouts; 350433e274bSKuo Zhao data[i++] = priv->adminq_describe_device_cnt; 351433e274bSKuo Zhao data[i++] = priv->adminq_cfg_device_resources_cnt; 352433e274bSKuo Zhao data[i++] = priv->adminq_register_page_list_cnt; 353433e274bSKuo Zhao data[i++] = priv->adminq_unregister_page_list_cnt; 354433e274bSKuo Zhao data[i++] = priv->adminq_create_tx_queue_cnt; 355433e274bSKuo Zhao data[i++] = priv->adminq_create_rx_queue_cnt; 356433e274bSKuo Zhao data[i++] = priv->adminq_destroy_tx_queue_cnt; 357433e274bSKuo Zhao data[i++] = priv->adminq_destroy_rx_queue_cnt; 358433e274bSKuo Zhao data[i++] = priv->adminq_dcfg_device_resources_cnt; 359433e274bSKuo Zhao data[i++] = priv->adminq_set_driver_parameter_cnt; 36024aeb56fSKuo Zhao data[i++] = priv->adminq_report_stats_cnt; 3617e074d5aSDavid Awogbemila data[i++] = priv->adminq_report_link_speed_cnt; 362e5b845dcSCatherine Sullivan } 363e5b845dcSCatherine Sullivan 364e5b845dcSCatherine Sullivan static void gve_get_channels(struct net_device *netdev, 365e5b845dcSCatherine Sullivan struct ethtool_channels *cmd) 366e5b845dcSCatherine Sullivan { 367e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 368e5b845dcSCatherine Sullivan 369e5b845dcSCatherine Sullivan cmd->max_rx = priv->rx_cfg.max_queues; 370e5b845dcSCatherine Sullivan cmd->max_tx = priv->tx_cfg.max_queues; 371e5b845dcSCatherine Sullivan cmd->max_other = 0; 372e5b845dcSCatherine Sullivan cmd->max_combined = 0; 373e5b845dcSCatherine Sullivan cmd->rx_count = priv->rx_cfg.num_queues; 374e5b845dcSCatherine Sullivan cmd->tx_count = priv->tx_cfg.num_queues; 375e5b845dcSCatherine Sullivan cmd->other_count = 0; 376e5b845dcSCatherine Sullivan cmd->combined_count = 0; 377e5b845dcSCatherine Sullivan } 378e5b845dcSCatherine Sullivan 379e5b845dcSCatherine Sullivan static int gve_set_channels(struct net_device *netdev, 380e5b845dcSCatherine Sullivan struct ethtool_channels *cmd) 381e5b845dcSCatherine Sullivan { 382e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 383e5b845dcSCatherine Sullivan struct gve_queue_config new_tx_cfg = priv->tx_cfg; 384e5b845dcSCatherine Sullivan struct gve_queue_config new_rx_cfg = priv->rx_cfg; 385e5b845dcSCatherine Sullivan struct ethtool_channels old_settings; 386e5b845dcSCatherine Sullivan int new_tx = cmd->tx_count; 387e5b845dcSCatherine Sullivan int new_rx = cmd->rx_count; 388e5b845dcSCatherine Sullivan 389e5b845dcSCatherine Sullivan gve_get_channels(netdev, &old_settings); 390e5b845dcSCatherine Sullivan 391e5b845dcSCatherine Sullivan /* Changing combined is not allowed allowed */ 392e5b845dcSCatherine Sullivan if (cmd->combined_count != old_settings.combined_count) 393e5b845dcSCatherine Sullivan return -EINVAL; 394e5b845dcSCatherine Sullivan 395e5b845dcSCatherine Sullivan if (!new_rx || !new_tx) 396e5b845dcSCatherine Sullivan return -EINVAL; 397e5b845dcSCatherine Sullivan 398e5b845dcSCatherine Sullivan if (!netif_carrier_ok(netdev)) { 399e5b845dcSCatherine Sullivan priv->tx_cfg.num_queues = new_tx; 400e5b845dcSCatherine Sullivan priv->rx_cfg.num_queues = new_rx; 401e5b845dcSCatherine Sullivan return 0; 402e5b845dcSCatherine Sullivan } 403e5b845dcSCatherine Sullivan 404e5b845dcSCatherine Sullivan new_tx_cfg.num_queues = new_tx; 405e5b845dcSCatherine Sullivan new_rx_cfg.num_queues = new_rx; 406e5b845dcSCatherine Sullivan 407e5b845dcSCatherine Sullivan return gve_adjust_queues(priv, new_rx_cfg, new_tx_cfg); 408e5b845dcSCatherine Sullivan } 409e5b845dcSCatherine Sullivan 410e5b845dcSCatherine Sullivan static void gve_get_ringparam(struct net_device *netdev, 411e5b845dcSCatherine Sullivan struct ethtool_ringparam *cmd) 412e5b845dcSCatherine Sullivan { 413e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 414e5b845dcSCatherine Sullivan 415e5b845dcSCatherine Sullivan cmd->rx_max_pending = priv->rx_desc_cnt; 416e5b845dcSCatherine Sullivan cmd->tx_max_pending = priv->tx_desc_cnt; 417e5b845dcSCatherine Sullivan cmd->rx_pending = priv->rx_desc_cnt; 418e5b845dcSCatherine Sullivan cmd->tx_pending = priv->tx_desc_cnt; 419e5b845dcSCatherine Sullivan } 420e5b845dcSCatherine Sullivan 421e5b845dcSCatherine Sullivan static int gve_user_reset(struct net_device *netdev, u32 *flags) 422e5b845dcSCatherine Sullivan { 423e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 424e5b845dcSCatherine Sullivan 425e5b845dcSCatherine Sullivan if (*flags == ETH_RESET_ALL) { 426e5b845dcSCatherine Sullivan *flags = 0; 427e5b845dcSCatherine Sullivan return gve_reset(priv, true); 428e5b845dcSCatherine Sullivan } 429e5b845dcSCatherine Sullivan 430e5b845dcSCatherine Sullivan return -EOPNOTSUPP; 431e5b845dcSCatherine Sullivan } 432e5b845dcSCatherine Sullivan 433d5f7543cSKuo Zhao static int gve_get_tunable(struct net_device *netdev, 434d5f7543cSKuo Zhao const struct ethtool_tunable *etuna, void *value) 435d5f7543cSKuo Zhao { 436d5f7543cSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 437d5f7543cSKuo Zhao 438d5f7543cSKuo Zhao switch (etuna->id) { 439d5f7543cSKuo Zhao case ETHTOOL_RX_COPYBREAK: 440d5f7543cSKuo Zhao *(u32 *)value = priv->rx_copybreak; 441d5f7543cSKuo Zhao return 0; 442d5f7543cSKuo Zhao default: 443d5f7543cSKuo Zhao return -EOPNOTSUPP; 444d5f7543cSKuo Zhao } 445d5f7543cSKuo Zhao } 446d5f7543cSKuo Zhao 447d5f7543cSKuo Zhao static int gve_set_tunable(struct net_device *netdev, 448433e274bSKuo Zhao const struct ethtool_tunable *etuna, 449433e274bSKuo Zhao const void *value) 450d5f7543cSKuo Zhao { 451d5f7543cSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 452d5f7543cSKuo Zhao u32 len; 453d5f7543cSKuo Zhao 454d5f7543cSKuo Zhao switch (etuna->id) { 455d5f7543cSKuo Zhao case ETHTOOL_RX_COPYBREAK: 456d5f7543cSKuo Zhao len = *(u32 *)value; 457d5f7543cSKuo Zhao if (len > PAGE_SIZE / 2) 458d5f7543cSKuo Zhao return -EINVAL; 459d5f7543cSKuo Zhao priv->rx_copybreak = len; 460d5f7543cSKuo Zhao return 0; 461d5f7543cSKuo Zhao default: 462d5f7543cSKuo Zhao return -EOPNOTSUPP; 463d5f7543cSKuo Zhao } 464d5f7543cSKuo Zhao } 465d5f7543cSKuo Zhao 46624aeb56fSKuo Zhao static u32 gve_get_priv_flags(struct net_device *netdev) 46724aeb56fSKuo Zhao { 46824aeb56fSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 46924aeb56fSKuo Zhao u32 ret_flags = 0; 47024aeb56fSKuo Zhao 47124aeb56fSKuo Zhao /* Only 1 flag exists currently: report-stats (BIT(O)), so set that flag. */ 47224aeb56fSKuo Zhao if (priv->ethtool_flags & BIT(0)) 47324aeb56fSKuo Zhao ret_flags |= BIT(0); 47424aeb56fSKuo Zhao return ret_flags; 47524aeb56fSKuo Zhao } 47624aeb56fSKuo Zhao 47724aeb56fSKuo Zhao static int gve_set_priv_flags(struct net_device *netdev, u32 flags) 47824aeb56fSKuo Zhao { 47924aeb56fSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 48024aeb56fSKuo Zhao u64 ori_flags, new_flags; 48124aeb56fSKuo Zhao 48224aeb56fSKuo Zhao ori_flags = READ_ONCE(priv->ethtool_flags); 48324aeb56fSKuo Zhao new_flags = ori_flags; 48424aeb56fSKuo Zhao 48524aeb56fSKuo Zhao /* Only one priv flag exists: report-stats (BIT(0))*/ 48624aeb56fSKuo Zhao if (flags & BIT(0)) 48724aeb56fSKuo Zhao new_flags |= BIT(0); 48824aeb56fSKuo Zhao else 48924aeb56fSKuo Zhao new_flags &= ~(BIT(0)); 49024aeb56fSKuo Zhao priv->ethtool_flags = new_flags; 49124aeb56fSKuo Zhao /* start report-stats timer when user turns report stats on. */ 49224aeb56fSKuo Zhao if (flags & BIT(0)) { 49324aeb56fSKuo Zhao mod_timer(&priv->stats_report_timer, 49424aeb56fSKuo Zhao round_jiffies(jiffies + 49524aeb56fSKuo Zhao msecs_to_jiffies(priv->stats_report_timer_period))); 49624aeb56fSKuo Zhao } 49724aeb56fSKuo Zhao /* Zero off gve stats when report-stats turned off and */ 49824aeb56fSKuo Zhao /* delete report stats timer. */ 49924aeb56fSKuo Zhao if (!(flags & BIT(0)) && (ori_flags & BIT(0))) { 50024aeb56fSKuo Zhao int tx_stats_num = GVE_TX_STATS_REPORT_NUM * 50124aeb56fSKuo Zhao priv->tx_cfg.num_queues; 50224aeb56fSKuo Zhao int rx_stats_num = GVE_RX_STATS_REPORT_NUM * 50324aeb56fSKuo Zhao priv->rx_cfg.num_queues; 50424aeb56fSKuo Zhao 50524aeb56fSKuo Zhao memset(priv->stats_report->stats, 0, (tx_stats_num + rx_stats_num) * 50624aeb56fSKuo Zhao sizeof(struct stats)); 50724aeb56fSKuo Zhao del_timer_sync(&priv->stats_report_timer); 50824aeb56fSKuo Zhao } 50924aeb56fSKuo Zhao return 0; 51024aeb56fSKuo Zhao } 51124aeb56fSKuo Zhao 5127e074d5aSDavid Awogbemila static int gve_get_link_ksettings(struct net_device *netdev, 5137e074d5aSDavid Awogbemila struct ethtool_link_ksettings *cmd) 5147e074d5aSDavid Awogbemila { 5157e074d5aSDavid Awogbemila struct gve_priv *priv = netdev_priv(netdev); 5167e074d5aSDavid Awogbemila int err = gve_adminq_report_link_speed(priv); 5177e074d5aSDavid Awogbemila 5187e074d5aSDavid Awogbemila cmd->base.speed = priv->link_speed; 5197e074d5aSDavid Awogbemila return err; 5207e074d5aSDavid Awogbemila } 5217e074d5aSDavid Awogbemila 522e5b845dcSCatherine Sullivan const struct ethtool_ops gve_ethtool_ops = { 523e5b845dcSCatherine Sullivan .get_drvinfo = gve_get_drvinfo, 524e5b845dcSCatherine Sullivan .get_strings = gve_get_strings, 525e5b845dcSCatherine Sullivan .get_sset_count = gve_get_sset_count, 526e5b845dcSCatherine Sullivan .get_ethtool_stats = gve_get_ethtool_stats, 527e5b845dcSCatherine Sullivan .set_msglevel = gve_set_msglevel, 528e5b845dcSCatherine Sullivan .get_msglevel = gve_get_msglevel, 529e5b845dcSCatherine Sullivan .set_channels = gve_set_channels, 530e5b845dcSCatherine Sullivan .get_channels = gve_get_channels, 531e5b845dcSCatherine Sullivan .get_link = ethtool_op_get_link, 532e5b845dcSCatherine Sullivan .get_ringparam = gve_get_ringparam, 533e5b845dcSCatherine Sullivan .reset = gve_user_reset, 534d5f7543cSKuo Zhao .get_tunable = gve_get_tunable, 535d5f7543cSKuo Zhao .set_tunable = gve_set_tunable, 53624aeb56fSKuo Zhao .get_priv_flags = gve_get_priv_flags, 53724aeb56fSKuo Zhao .set_priv_flags = gve_set_priv_flags, 5387e074d5aSDavid Awogbemila .get_link_ksettings = gve_get_link_ksettings 539e5b845dcSCatherine Sullivan }; 540