1e5b845dcSCatherine Sullivan // SPDX-License-Identifier: (GPL-2.0 OR MIT) 2e5b845dcSCatherine Sullivan /* Google virtual Ethernet (gve) driver 3e5b845dcSCatherine Sullivan * 41f6228e4SBailey Forrest * Copyright (C) 2015-2021 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 17c32773c9SDaode Huang strscpy(info->driver, "gve", sizeof(info->driver)); 18c32773c9SDaode Huang strscpy(info->version, gve_version_str, sizeof(info->version)); 19c32773c9SDaode 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]", 4637149e93SDavid Awogbemila "rx_cont_packet_cnt[%u]", "rx_frag_flip_cnt[%u]", "rx_frag_copy_cnt[%u]", 47433e274bSKuo Zhao "rx_dropped_pkt[%u]", "rx_copybreak_pkt[%u]", "rx_copied_pkt[%u]", 482f523dc3SDavid Awogbemila "rx_queue_drop_cnt[%u]", "rx_no_buffers_posted[%u]", 492f523dc3SDavid Awogbemila "rx_drops_packet_over_mru[%u]", "rx_drops_invalid_checksum[%u]", 50433e274bSKuo Zhao }; 51433e274bSKuo Zhao 52433e274bSKuo Zhao static const char gve_gstrings_tx_stats[][ETH_GSTRING_LEN] = { 53433e274bSKuo Zhao "tx_posted_desc[%u]", "tx_completed_desc[%u]", "tx_bytes[%u]", 54433e274bSKuo Zhao "tx_wake[%u]", "tx_stop[%u]", "tx_event_counter[%u]", 556f007c64SCatherine Sullivan "tx_dma_mapping_error[%u]", 56433e274bSKuo Zhao }; 57433e274bSKuo Zhao 58433e274bSKuo Zhao static const char gve_gstrings_adminq_stats[][ETH_GSTRING_LEN] = { 59433e274bSKuo Zhao "adminq_prod_cnt", "adminq_cmd_fail", "adminq_timeouts", 60433e274bSKuo Zhao "adminq_describe_device_cnt", "adminq_cfg_device_resources_cnt", 61433e274bSKuo Zhao "adminq_register_page_list_cnt", "adminq_unregister_page_list_cnt", 62433e274bSKuo Zhao "adminq_create_tx_queue_cnt", "adminq_create_rx_queue_cnt", 63433e274bSKuo Zhao "adminq_destroy_tx_queue_cnt", "adminq_destroy_rx_queue_cnt", 64433e274bSKuo Zhao "adminq_dcfg_device_resources_cnt", "adminq_set_driver_parameter_cnt", 657e074d5aSDavid Awogbemila "adminq_report_stats_cnt", "adminq_report_link_speed_cnt" 6624aeb56fSKuo Zhao }; 6724aeb56fSKuo Zhao 6824aeb56fSKuo Zhao static const char gve_gstrings_priv_flags[][ETH_GSTRING_LEN] = { 6924aeb56fSKuo Zhao "report-stats", 70e5b845dcSCatherine Sullivan }; 71e5b845dcSCatherine Sullivan 72e5b845dcSCatherine Sullivan #define GVE_MAIN_STATS_LEN ARRAY_SIZE(gve_gstrings_main_stats) 73433e274bSKuo Zhao #define GVE_ADMINQ_STATS_LEN ARRAY_SIZE(gve_gstrings_adminq_stats) 74433e274bSKuo Zhao #define NUM_GVE_TX_CNTS ARRAY_SIZE(gve_gstrings_tx_stats) 75433e274bSKuo Zhao #define NUM_GVE_RX_CNTS ARRAY_SIZE(gve_gstrings_rx_stats) 7624aeb56fSKuo Zhao #define GVE_PRIV_FLAGS_STR_LEN ARRAY_SIZE(gve_gstrings_priv_flags) 77e5b845dcSCatherine Sullivan 78e5b845dcSCatherine Sullivan static void gve_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 79e5b845dcSCatherine Sullivan { 80e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 81e5b845dcSCatherine Sullivan char *s = (char *)data; 82433e274bSKuo Zhao int i, j; 83e5b845dcSCatherine Sullivan 8424aeb56fSKuo Zhao switch (stringset) { 8524aeb56fSKuo Zhao case ETH_SS_STATS: 86e5b845dcSCatherine Sullivan memcpy(s, *gve_gstrings_main_stats, 87e5b845dcSCatherine Sullivan sizeof(gve_gstrings_main_stats)); 88e5b845dcSCatherine Sullivan s += sizeof(gve_gstrings_main_stats); 8924aeb56fSKuo Zhao 90e5b845dcSCatherine Sullivan for (i = 0; i < priv->rx_cfg.num_queues; i++) { 91433e274bSKuo Zhao for (j = 0; j < NUM_GVE_RX_CNTS; j++) { 9224aeb56fSKuo Zhao snprintf(s, ETH_GSTRING_LEN, 9324aeb56fSKuo Zhao gve_gstrings_rx_stats[j], i); 94e5b845dcSCatherine Sullivan s += ETH_GSTRING_LEN; 95433e274bSKuo Zhao } 96e5b845dcSCatherine Sullivan } 9724aeb56fSKuo Zhao 98e5b845dcSCatherine Sullivan for (i = 0; i < priv->tx_cfg.num_queues; i++) { 99433e274bSKuo Zhao for (j = 0; j < NUM_GVE_TX_CNTS; j++) { 10024aeb56fSKuo Zhao snprintf(s, ETH_GSTRING_LEN, 10124aeb56fSKuo Zhao gve_gstrings_tx_stats[j], i); 102e5b845dcSCatherine Sullivan s += ETH_GSTRING_LEN; 103e5b845dcSCatherine Sullivan } 104e5b845dcSCatherine Sullivan } 105e5b845dcSCatherine Sullivan 106433e274bSKuo Zhao memcpy(s, *gve_gstrings_adminq_stats, 107433e274bSKuo Zhao sizeof(gve_gstrings_adminq_stats)); 108433e274bSKuo Zhao s += sizeof(gve_gstrings_adminq_stats); 10924aeb56fSKuo Zhao break; 11024aeb56fSKuo Zhao 11124aeb56fSKuo Zhao case ETH_SS_PRIV_FLAGS: 11224aeb56fSKuo Zhao memcpy(s, *gve_gstrings_priv_flags, 11324aeb56fSKuo Zhao sizeof(gve_gstrings_priv_flags)); 11424aeb56fSKuo Zhao s += sizeof(gve_gstrings_priv_flags); 11524aeb56fSKuo Zhao break; 11624aeb56fSKuo Zhao 11724aeb56fSKuo Zhao default: 11824aeb56fSKuo Zhao break; 11924aeb56fSKuo Zhao } 120433e274bSKuo Zhao } 121433e274bSKuo Zhao 122e5b845dcSCatherine Sullivan static int gve_get_sset_count(struct net_device *netdev, int sset) 123e5b845dcSCatherine Sullivan { 124e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 125e5b845dcSCatherine Sullivan 126e5b845dcSCatherine Sullivan switch (sset) { 127e5b845dcSCatherine Sullivan case ETH_SS_STATS: 128433e274bSKuo Zhao return GVE_MAIN_STATS_LEN + GVE_ADMINQ_STATS_LEN + 129e5b845dcSCatherine Sullivan (priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS) + 130e5b845dcSCatherine Sullivan (priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS); 13124aeb56fSKuo Zhao case ETH_SS_PRIV_FLAGS: 13224aeb56fSKuo Zhao return GVE_PRIV_FLAGS_STR_LEN; 133e5b845dcSCatherine Sullivan default: 134e5b845dcSCatherine Sullivan return -EOPNOTSUPP; 135e5b845dcSCatherine Sullivan } 136e5b845dcSCatherine Sullivan } 137e5b845dcSCatherine Sullivan 138e5b845dcSCatherine Sullivan static void 139e5b845dcSCatherine Sullivan gve_get_ethtool_stats(struct net_device *netdev, 140e5b845dcSCatherine Sullivan struct ethtool_stats *stats, u64 *data) 141e5b845dcSCatherine Sullivan { 142433e274bSKuo Zhao u64 tmp_rx_pkts, tmp_rx_bytes, tmp_rx_skb_alloc_fail, tmp_rx_buf_alloc_fail, 143433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt, tmp_tx_pkts, tmp_tx_bytes; 144433e274bSKuo Zhao u64 rx_buf_alloc_fail, rx_desc_err_dropped_pkt, rx_pkts, 145433e274bSKuo Zhao rx_skb_alloc_fail, rx_bytes, tx_pkts, tx_bytes; 1462f523dc3SDavid Awogbemila int stats_idx, base_stats_idx, max_stats_idx; 1472f523dc3SDavid Awogbemila struct stats *report_stats; 1482f523dc3SDavid Awogbemila int *rx_qid_to_stats_idx; 1492f523dc3SDavid Awogbemila int *tx_qid_to_stats_idx; 150433e274bSKuo Zhao struct gve_priv *priv; 1512f523dc3SDavid Awogbemila bool skip_nic_stats; 152e5b845dcSCatherine Sullivan unsigned int start; 153e5b845dcSCatherine Sullivan int ring; 1542f523dc3SDavid Awogbemila int i, j; 155e5b845dcSCatherine Sullivan 156e5b845dcSCatherine Sullivan ASSERT_RTNL(); 157e5b845dcSCatherine Sullivan 158433e274bSKuo Zhao priv = netdev_priv(netdev); 1592f523dc3SDavid Awogbemila report_stats = priv->stats_report->stats; 1602f523dc3SDavid Awogbemila rx_qid_to_stats_idx = kmalloc_array(priv->rx_cfg.num_queues, 1612f523dc3SDavid Awogbemila sizeof(int), GFP_KERNEL); 1622f523dc3SDavid Awogbemila if (!rx_qid_to_stats_idx) 1632f523dc3SDavid Awogbemila return; 1642f523dc3SDavid Awogbemila tx_qid_to_stats_idx = kmalloc_array(priv->tx_cfg.num_queues, 1652f523dc3SDavid Awogbemila sizeof(int), GFP_KERNEL); 1662f523dc3SDavid Awogbemila if (!tx_qid_to_stats_idx) { 1672f523dc3SDavid Awogbemila kfree(rx_qid_to_stats_idx); 1682f523dc3SDavid Awogbemila return; 1692f523dc3SDavid Awogbemila } 170433e274bSKuo Zhao for (rx_pkts = 0, rx_bytes = 0, rx_skb_alloc_fail = 0, 171433e274bSKuo Zhao rx_buf_alloc_fail = 0, rx_desc_err_dropped_pkt = 0, ring = 0; 172e5b845dcSCatherine Sullivan ring < priv->rx_cfg.num_queues; ring++) { 173e5b845dcSCatherine Sullivan if (priv->rx) { 174e5b845dcSCatherine Sullivan do { 175433e274bSKuo Zhao struct gve_rx_ring *rx = &priv->rx[ring]; 176433e274bSKuo Zhao 1773c13ce74SCatherine Sullivan start = 178e5b845dcSCatherine Sullivan u64_stats_fetch_begin(&priv->rx[ring].statss); 179433e274bSKuo Zhao tmp_rx_pkts = rx->rpackets; 180433e274bSKuo Zhao tmp_rx_bytes = rx->rbytes; 181433e274bSKuo Zhao tmp_rx_skb_alloc_fail = rx->rx_skb_alloc_fail; 182433e274bSKuo Zhao tmp_rx_buf_alloc_fail = rx->rx_buf_alloc_fail; 183433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt = 184433e274bSKuo Zhao rx->rx_desc_err_dropped_pkt; 185e5b845dcSCatherine Sullivan } while (u64_stats_fetch_retry(&priv->rx[ring].statss, 186e5b845dcSCatherine Sullivan start)); 187433e274bSKuo Zhao rx_pkts += tmp_rx_pkts; 188433e274bSKuo Zhao rx_bytes += tmp_rx_bytes; 189433e274bSKuo Zhao rx_skb_alloc_fail += tmp_rx_skb_alloc_fail; 190433e274bSKuo Zhao rx_buf_alloc_fail += tmp_rx_buf_alloc_fail; 191433e274bSKuo Zhao rx_desc_err_dropped_pkt += tmp_rx_desc_err_dropped_pkt; 192e5b845dcSCatherine Sullivan } 193e5b845dcSCatherine Sullivan } 194e5b845dcSCatherine Sullivan for (tx_pkts = 0, tx_bytes = 0, ring = 0; 195e5b845dcSCatherine Sullivan ring < priv->tx_cfg.num_queues; ring++) { 196e5b845dcSCatherine Sullivan if (priv->tx) { 197e5b845dcSCatherine Sullivan do { 1983c13ce74SCatherine Sullivan start = 199e5b845dcSCatherine Sullivan u64_stats_fetch_begin(&priv->tx[ring].statss); 200433e274bSKuo Zhao tmp_tx_pkts = priv->tx[ring].pkt_done; 201433e274bSKuo Zhao tmp_tx_bytes = priv->tx[ring].bytes_done; 202e5b845dcSCatherine Sullivan } while (u64_stats_fetch_retry(&priv->tx[ring].statss, 203e5b845dcSCatherine Sullivan start)); 204433e274bSKuo Zhao tx_pkts += tmp_tx_pkts; 205433e274bSKuo Zhao tx_bytes += tmp_tx_bytes; 206e5b845dcSCatherine Sullivan } 207e5b845dcSCatherine Sullivan } 208e5b845dcSCatherine Sullivan 209e5b845dcSCatherine Sullivan i = 0; 210e5b845dcSCatherine Sullivan data[i++] = rx_pkts; 211e5b845dcSCatherine Sullivan data[i++] = tx_pkts; 212e5b845dcSCatherine Sullivan data[i++] = rx_bytes; 213e5b845dcSCatherine Sullivan data[i++] = tx_bytes; 214433e274bSKuo Zhao /* total rx dropped packets */ 215433e274bSKuo Zhao data[i++] = rx_skb_alloc_fail + rx_buf_alloc_fail + 216433e274bSKuo Zhao rx_desc_err_dropped_pkt; 217433e274bSKuo Zhao /* Skip tx_dropped */ 218433e274bSKuo Zhao i++; 219433e274bSKuo Zhao 220e5b845dcSCatherine Sullivan data[i++] = priv->tx_timeo_cnt; 221433e274bSKuo Zhao data[i++] = rx_skb_alloc_fail; 222433e274bSKuo Zhao data[i++] = rx_buf_alloc_fail; 223433e274bSKuo Zhao data[i++] = rx_desc_err_dropped_pkt; 224433e274bSKuo Zhao data[i++] = priv->interface_up_cnt; 225433e274bSKuo Zhao data[i++] = priv->interface_down_cnt; 226433e274bSKuo Zhao data[i++] = priv->reset_cnt; 227433e274bSKuo Zhao data[i++] = priv->page_alloc_fail; 228433e274bSKuo Zhao data[i++] = priv->dma_mapping_error; 22924aeb56fSKuo Zhao data[i++] = priv->stats_report_trigger_cnt; 230e5b845dcSCatherine Sullivan i = GVE_MAIN_STATS_LEN; 231e5b845dcSCatherine Sullivan 2322f523dc3SDavid Awogbemila /* For rx cross-reporting stats, start from nic rx stats in report */ 2332f523dc3SDavid Awogbemila base_stats_idx = GVE_TX_STATS_REPORT_NUM * priv->tx_cfg.num_queues + 2342f523dc3SDavid Awogbemila GVE_RX_STATS_REPORT_NUM * priv->rx_cfg.num_queues; 2352f523dc3SDavid Awogbemila max_stats_idx = NIC_RX_STATS_REPORT_NUM * priv->rx_cfg.num_queues + 2362f523dc3SDavid Awogbemila base_stats_idx; 2372f523dc3SDavid Awogbemila /* Preprocess the stats report for rx, map queue id to start index */ 2382f523dc3SDavid Awogbemila skip_nic_stats = false; 2392f523dc3SDavid Awogbemila for (stats_idx = base_stats_idx; stats_idx < max_stats_idx; 2402f523dc3SDavid Awogbemila stats_idx += NIC_RX_STATS_REPORT_NUM) { 2412f523dc3SDavid Awogbemila u32 stat_name = be32_to_cpu(report_stats[stats_idx].stat_name); 2422f523dc3SDavid Awogbemila u32 queue_id = be32_to_cpu(report_stats[stats_idx].queue_id); 2432f523dc3SDavid Awogbemila 2442f523dc3SDavid Awogbemila if (stat_name == 0) { 2452f523dc3SDavid Awogbemila /* no stats written by NIC yet */ 2462f523dc3SDavid Awogbemila skip_nic_stats = true; 2472f523dc3SDavid Awogbemila break; 2482f523dc3SDavid Awogbemila } 2492f523dc3SDavid Awogbemila rx_qid_to_stats_idx[queue_id] = stats_idx; 2502f523dc3SDavid Awogbemila } 251e5b845dcSCatherine Sullivan /* walk RX rings */ 252e5b845dcSCatherine Sullivan if (priv->rx) { 253e5b845dcSCatherine Sullivan for (ring = 0; ring < priv->rx_cfg.num_queues; ring++) { 254e5b845dcSCatherine Sullivan struct gve_rx_ring *rx = &priv->rx[ring]; 255e5b845dcSCatherine Sullivan 256438b43bdSCatherine Sullivan data[i++] = rx->fill_cnt; 257433e274bSKuo Zhao data[i++] = rx->cnt; 258433e274bSKuo Zhao do { 259433e274bSKuo Zhao start = 260433e274bSKuo Zhao u64_stats_fetch_begin(&priv->rx[ring].statss); 261433e274bSKuo Zhao tmp_rx_bytes = rx->rbytes; 262433e274bSKuo Zhao tmp_rx_skb_alloc_fail = rx->rx_skb_alloc_fail; 263433e274bSKuo Zhao tmp_rx_buf_alloc_fail = rx->rx_buf_alloc_fail; 264433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt = 265433e274bSKuo Zhao rx->rx_desc_err_dropped_pkt; 266433e274bSKuo Zhao } while (u64_stats_fetch_retry(&priv->rx[ring].statss, 267433e274bSKuo Zhao start)); 268433e274bSKuo Zhao data[i++] = tmp_rx_bytes; 26937149e93SDavid Awogbemila data[i++] = rx->rx_cont_packet_cnt; 27037149e93SDavid Awogbemila data[i++] = rx->rx_frag_flip_cnt; 27137149e93SDavid Awogbemila data[i++] = rx->rx_frag_copy_cnt; 272433e274bSKuo Zhao /* rx dropped packets */ 273433e274bSKuo Zhao data[i++] = tmp_rx_skb_alloc_fail + 274433e274bSKuo Zhao tmp_rx_buf_alloc_fail + 275433e274bSKuo Zhao tmp_rx_desc_err_dropped_pkt; 276433e274bSKuo Zhao data[i++] = rx->rx_copybreak_pkt; 277433e274bSKuo Zhao data[i++] = rx->rx_copied_pkt; 2782f523dc3SDavid Awogbemila /* stats from NIC */ 2792f523dc3SDavid Awogbemila if (skip_nic_stats) { 2802f523dc3SDavid Awogbemila /* skip NIC rx stats */ 2812f523dc3SDavid Awogbemila i += NIC_RX_STATS_REPORT_NUM; 2822f523dc3SDavid Awogbemila continue; 2832f523dc3SDavid Awogbemila } 2842f523dc3SDavid Awogbemila for (j = 0; j < NIC_RX_STATS_REPORT_NUM; j++) { 2852f523dc3SDavid Awogbemila u64 value = 2862f523dc3SDavid Awogbemila be64_to_cpu(report_stats[rx_qid_to_stats_idx[ring] + j].value); 2872f523dc3SDavid Awogbemila 2882f523dc3SDavid Awogbemila data[i++] = value; 2892f523dc3SDavid Awogbemila } 290e5b845dcSCatherine Sullivan } 291e5b845dcSCatherine Sullivan } else { 292e5b845dcSCatherine Sullivan i += priv->rx_cfg.num_queues * NUM_GVE_RX_CNTS; 293e5b845dcSCatherine Sullivan } 2942f523dc3SDavid Awogbemila 2952f523dc3SDavid Awogbemila /* For tx cross-reporting stats, start from nic tx stats in report */ 2962f523dc3SDavid Awogbemila base_stats_idx = max_stats_idx; 2972f523dc3SDavid Awogbemila max_stats_idx = NIC_TX_STATS_REPORT_NUM * priv->tx_cfg.num_queues + 2982f523dc3SDavid Awogbemila max_stats_idx; 2992f523dc3SDavid Awogbemila /* Preprocess the stats report for tx, map queue id to start index */ 3002f523dc3SDavid Awogbemila skip_nic_stats = false; 3012f523dc3SDavid Awogbemila for (stats_idx = base_stats_idx; stats_idx < max_stats_idx; 3022f523dc3SDavid Awogbemila stats_idx += NIC_TX_STATS_REPORT_NUM) { 3032f523dc3SDavid Awogbemila u32 stat_name = be32_to_cpu(report_stats[stats_idx].stat_name); 3042f523dc3SDavid Awogbemila u32 queue_id = be32_to_cpu(report_stats[stats_idx].queue_id); 3052f523dc3SDavid Awogbemila 3062f523dc3SDavid Awogbemila if (stat_name == 0) { 3072f523dc3SDavid Awogbemila /* no stats written by NIC yet */ 3082f523dc3SDavid Awogbemila skip_nic_stats = true; 3092f523dc3SDavid Awogbemila break; 3102f523dc3SDavid Awogbemila } 3112f523dc3SDavid Awogbemila tx_qid_to_stats_idx[queue_id] = stats_idx; 3122f523dc3SDavid Awogbemila } 313e5b845dcSCatherine Sullivan /* walk TX rings */ 314e5b845dcSCatherine Sullivan if (priv->tx) { 315e5b845dcSCatherine Sullivan for (ring = 0; ring < priv->tx_cfg.num_queues; ring++) { 316e5b845dcSCatherine Sullivan struct gve_tx_ring *tx = &priv->tx[ring]; 317e5b845dcSCatherine Sullivan 3185e8c5adfSBailey Forrest if (gve_is_gqi(priv)) { 319e5b845dcSCatherine Sullivan data[i++] = tx->req; 320e5b845dcSCatherine Sullivan data[i++] = tx->done; 3215e8c5adfSBailey Forrest } else { 3225e8c5adfSBailey Forrest /* DQO doesn't currently support 3235e8c5adfSBailey Forrest * posted/completed descriptor counts; 3245e8c5adfSBailey Forrest */ 3255e8c5adfSBailey Forrest data[i++] = 0; 3265e8c5adfSBailey Forrest data[i++] = 0; 3275e8c5adfSBailey Forrest } 328433e274bSKuo Zhao do { 329433e274bSKuo Zhao start = 330433e274bSKuo Zhao u64_stats_fetch_begin(&priv->tx[ring].statss); 331433e274bSKuo Zhao tmp_tx_bytes = tx->bytes_done; 332433e274bSKuo Zhao } while (u64_stats_fetch_retry(&priv->tx[ring].statss, 333433e274bSKuo Zhao start)); 334433e274bSKuo Zhao data[i++] = tmp_tx_bytes; 335e5b845dcSCatherine Sullivan data[i++] = tx->wake_queue; 336e5b845dcSCatherine Sullivan data[i++] = tx->stop_queue; 33761d72c7eSTao Liu data[i++] = gve_tx_load_event_counter(priv, tx); 3386f007c64SCatherine Sullivan data[i++] = tx->dma_mapping_error; 3392f523dc3SDavid Awogbemila /* stats from NIC */ 3402f523dc3SDavid Awogbemila if (skip_nic_stats) { 3412f523dc3SDavid Awogbemila /* skip NIC tx stats */ 3422f523dc3SDavid Awogbemila i += NIC_TX_STATS_REPORT_NUM; 3432f523dc3SDavid Awogbemila continue; 3442f523dc3SDavid Awogbemila } 3452f523dc3SDavid Awogbemila for (j = 0; j < NIC_TX_STATS_REPORT_NUM; j++) { 3462f523dc3SDavid Awogbemila u64 value = 3472f523dc3SDavid Awogbemila be64_to_cpu(report_stats[tx_qid_to_stats_idx[ring] + j].value); 3482f523dc3SDavid Awogbemila data[i++] = value; 3492f523dc3SDavid Awogbemila } 350e5b845dcSCatherine Sullivan } 351e5b845dcSCatherine Sullivan } else { 352e5b845dcSCatherine Sullivan i += priv->tx_cfg.num_queues * NUM_GVE_TX_CNTS; 353e5b845dcSCatherine Sullivan } 3542f523dc3SDavid Awogbemila 3552f523dc3SDavid Awogbemila kfree(rx_qid_to_stats_idx); 3562f523dc3SDavid Awogbemila kfree(tx_qid_to_stats_idx); 357433e274bSKuo Zhao /* AQ Stats */ 358433e274bSKuo Zhao data[i++] = priv->adminq_prod_cnt; 359433e274bSKuo Zhao data[i++] = priv->adminq_cmd_fail; 360433e274bSKuo Zhao data[i++] = priv->adminq_timeouts; 361433e274bSKuo Zhao data[i++] = priv->adminq_describe_device_cnt; 362433e274bSKuo Zhao data[i++] = priv->adminq_cfg_device_resources_cnt; 363433e274bSKuo Zhao data[i++] = priv->adminq_register_page_list_cnt; 364433e274bSKuo Zhao data[i++] = priv->adminq_unregister_page_list_cnt; 365433e274bSKuo Zhao data[i++] = priv->adminq_create_tx_queue_cnt; 366433e274bSKuo Zhao data[i++] = priv->adminq_create_rx_queue_cnt; 367433e274bSKuo Zhao data[i++] = priv->adminq_destroy_tx_queue_cnt; 368433e274bSKuo Zhao data[i++] = priv->adminq_destroy_rx_queue_cnt; 369433e274bSKuo Zhao data[i++] = priv->adminq_dcfg_device_resources_cnt; 370433e274bSKuo Zhao data[i++] = priv->adminq_set_driver_parameter_cnt; 37124aeb56fSKuo Zhao data[i++] = priv->adminq_report_stats_cnt; 3727e074d5aSDavid Awogbemila data[i++] = priv->adminq_report_link_speed_cnt; 373e5b845dcSCatherine Sullivan } 374e5b845dcSCatherine Sullivan 375e5b845dcSCatherine Sullivan static void gve_get_channels(struct net_device *netdev, 376e5b845dcSCatherine Sullivan struct ethtool_channels *cmd) 377e5b845dcSCatherine Sullivan { 378e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 379e5b845dcSCatherine Sullivan 380e5b845dcSCatherine Sullivan cmd->max_rx = priv->rx_cfg.max_queues; 381e5b845dcSCatherine Sullivan cmd->max_tx = priv->tx_cfg.max_queues; 382e5b845dcSCatherine Sullivan cmd->max_other = 0; 383e5b845dcSCatherine Sullivan cmd->max_combined = 0; 384e5b845dcSCatherine Sullivan cmd->rx_count = priv->rx_cfg.num_queues; 385e5b845dcSCatherine Sullivan cmd->tx_count = priv->tx_cfg.num_queues; 386e5b845dcSCatherine Sullivan cmd->other_count = 0; 387e5b845dcSCatherine Sullivan cmd->combined_count = 0; 388e5b845dcSCatherine Sullivan } 389e5b845dcSCatherine Sullivan 390e5b845dcSCatherine Sullivan static int gve_set_channels(struct net_device *netdev, 391e5b845dcSCatherine Sullivan struct ethtool_channels *cmd) 392e5b845dcSCatherine Sullivan { 393e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 394e5b845dcSCatherine Sullivan struct gve_queue_config new_tx_cfg = priv->tx_cfg; 395e5b845dcSCatherine Sullivan struct gve_queue_config new_rx_cfg = priv->rx_cfg; 396e5b845dcSCatherine Sullivan struct ethtool_channels old_settings; 397e5b845dcSCatherine Sullivan int new_tx = cmd->tx_count; 398e5b845dcSCatherine Sullivan int new_rx = cmd->rx_count; 399e5b845dcSCatherine Sullivan 400e5b845dcSCatherine Sullivan gve_get_channels(netdev, &old_settings); 401e5b845dcSCatherine Sullivan 402f67435b5SDaode Huang /* Changing combined is not allowed */ 403e5b845dcSCatherine Sullivan if (cmd->combined_count != old_settings.combined_count) 404e5b845dcSCatherine Sullivan return -EINVAL; 405e5b845dcSCatherine Sullivan 406e5b845dcSCatherine Sullivan if (!new_rx || !new_tx) 407e5b845dcSCatherine Sullivan return -EINVAL; 408e5b845dcSCatherine Sullivan 409e5b845dcSCatherine Sullivan if (!netif_carrier_ok(netdev)) { 410e5b845dcSCatherine Sullivan priv->tx_cfg.num_queues = new_tx; 411e5b845dcSCatherine Sullivan priv->rx_cfg.num_queues = new_rx; 412e5b845dcSCatherine Sullivan return 0; 413e5b845dcSCatherine Sullivan } 414e5b845dcSCatherine Sullivan 415e5b845dcSCatherine Sullivan new_tx_cfg.num_queues = new_tx; 416e5b845dcSCatherine Sullivan new_rx_cfg.num_queues = new_rx; 417e5b845dcSCatherine Sullivan 418e5b845dcSCatherine Sullivan return gve_adjust_queues(priv, new_rx_cfg, new_tx_cfg); 419e5b845dcSCatherine Sullivan } 420e5b845dcSCatherine Sullivan 421e5b845dcSCatherine Sullivan static void gve_get_ringparam(struct net_device *netdev, 422*74624944SHao Chen struct ethtool_ringparam *cmd, 423*74624944SHao Chen struct kernel_ethtool_ringparam *kernel_cmd, 424*74624944SHao Chen struct netlink_ext_ack *extack) 425e5b845dcSCatherine Sullivan { 426e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 427e5b845dcSCatherine Sullivan 428e5b845dcSCatherine Sullivan cmd->rx_max_pending = priv->rx_desc_cnt; 429e5b845dcSCatherine Sullivan cmd->tx_max_pending = priv->tx_desc_cnt; 430e5b845dcSCatherine Sullivan cmd->rx_pending = priv->rx_desc_cnt; 431e5b845dcSCatherine Sullivan cmd->tx_pending = priv->tx_desc_cnt; 432e5b845dcSCatherine Sullivan } 433e5b845dcSCatherine Sullivan 434e5b845dcSCatherine Sullivan static int gve_user_reset(struct net_device *netdev, u32 *flags) 435e5b845dcSCatherine Sullivan { 436e5b845dcSCatherine Sullivan struct gve_priv *priv = netdev_priv(netdev); 437e5b845dcSCatherine Sullivan 438e5b845dcSCatherine Sullivan if (*flags == ETH_RESET_ALL) { 439e5b845dcSCatherine Sullivan *flags = 0; 440e5b845dcSCatherine Sullivan return gve_reset(priv, true); 441e5b845dcSCatherine Sullivan } 442e5b845dcSCatherine Sullivan 443e5b845dcSCatherine Sullivan return -EOPNOTSUPP; 444e5b845dcSCatherine Sullivan } 445e5b845dcSCatherine Sullivan 446d5f7543cSKuo Zhao static int gve_get_tunable(struct net_device *netdev, 447d5f7543cSKuo Zhao const struct ethtool_tunable *etuna, void *value) 448d5f7543cSKuo Zhao { 449d5f7543cSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 450d5f7543cSKuo Zhao 451d5f7543cSKuo Zhao switch (etuna->id) { 452d5f7543cSKuo Zhao case ETHTOOL_RX_COPYBREAK: 453d5f7543cSKuo Zhao *(u32 *)value = priv->rx_copybreak; 454d5f7543cSKuo Zhao return 0; 455d5f7543cSKuo Zhao default: 456d5f7543cSKuo Zhao return -EOPNOTSUPP; 457d5f7543cSKuo Zhao } 458d5f7543cSKuo Zhao } 459d5f7543cSKuo Zhao 460d5f7543cSKuo Zhao static int gve_set_tunable(struct net_device *netdev, 461433e274bSKuo Zhao const struct ethtool_tunable *etuna, 462433e274bSKuo Zhao const void *value) 463d5f7543cSKuo Zhao { 464d5f7543cSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 465d5f7543cSKuo Zhao u32 len; 466d5f7543cSKuo Zhao 467d5f7543cSKuo Zhao switch (etuna->id) { 468d5f7543cSKuo Zhao case ETHTOOL_RX_COPYBREAK: 4691f6228e4SBailey Forrest { 4701f6228e4SBailey Forrest u32 max_copybreak = gve_is_gqi(priv) ? 4711f6228e4SBailey Forrest (PAGE_SIZE / 2) : priv->data_buffer_size_dqo; 4721f6228e4SBailey Forrest 473d5f7543cSKuo Zhao len = *(u32 *)value; 4741f6228e4SBailey Forrest if (len > max_copybreak) 475d5f7543cSKuo Zhao return -EINVAL; 476d5f7543cSKuo Zhao priv->rx_copybreak = len; 477d5f7543cSKuo Zhao return 0; 4781f6228e4SBailey Forrest } 479d5f7543cSKuo Zhao default: 480d5f7543cSKuo Zhao return -EOPNOTSUPP; 481d5f7543cSKuo Zhao } 482d5f7543cSKuo Zhao } 483d5f7543cSKuo Zhao 48424aeb56fSKuo Zhao static u32 gve_get_priv_flags(struct net_device *netdev) 48524aeb56fSKuo Zhao { 48624aeb56fSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 48724aeb56fSKuo Zhao u32 ret_flags = 0; 48824aeb56fSKuo Zhao 48924aeb56fSKuo Zhao /* Only 1 flag exists currently: report-stats (BIT(O)), so set that flag. */ 49024aeb56fSKuo Zhao if (priv->ethtool_flags & BIT(0)) 49124aeb56fSKuo Zhao ret_flags |= BIT(0); 49224aeb56fSKuo Zhao return ret_flags; 49324aeb56fSKuo Zhao } 49424aeb56fSKuo Zhao 49524aeb56fSKuo Zhao static int gve_set_priv_flags(struct net_device *netdev, u32 flags) 49624aeb56fSKuo Zhao { 49724aeb56fSKuo Zhao struct gve_priv *priv = netdev_priv(netdev); 49824aeb56fSKuo Zhao u64 ori_flags, new_flags; 49924aeb56fSKuo Zhao 50024aeb56fSKuo Zhao ori_flags = READ_ONCE(priv->ethtool_flags); 50124aeb56fSKuo Zhao new_flags = ori_flags; 50224aeb56fSKuo Zhao 50324aeb56fSKuo Zhao /* Only one priv flag exists: report-stats (BIT(0))*/ 50424aeb56fSKuo Zhao if (flags & BIT(0)) 50524aeb56fSKuo Zhao new_flags |= BIT(0); 50624aeb56fSKuo Zhao else 50724aeb56fSKuo Zhao new_flags &= ~(BIT(0)); 50824aeb56fSKuo Zhao priv->ethtool_flags = new_flags; 50924aeb56fSKuo Zhao /* start report-stats timer when user turns report stats on. */ 51024aeb56fSKuo Zhao if (flags & BIT(0)) { 51124aeb56fSKuo Zhao mod_timer(&priv->stats_report_timer, 51224aeb56fSKuo Zhao round_jiffies(jiffies + 51324aeb56fSKuo Zhao msecs_to_jiffies(priv->stats_report_timer_period))); 51424aeb56fSKuo Zhao } 51524aeb56fSKuo Zhao /* Zero off gve stats when report-stats turned off and */ 51624aeb56fSKuo Zhao /* delete report stats timer. */ 51724aeb56fSKuo Zhao if (!(flags & BIT(0)) && (ori_flags & BIT(0))) { 51824aeb56fSKuo Zhao int tx_stats_num = GVE_TX_STATS_REPORT_NUM * 51924aeb56fSKuo Zhao priv->tx_cfg.num_queues; 52024aeb56fSKuo Zhao int rx_stats_num = GVE_RX_STATS_REPORT_NUM * 52124aeb56fSKuo Zhao priv->rx_cfg.num_queues; 52224aeb56fSKuo Zhao 52324aeb56fSKuo Zhao memset(priv->stats_report->stats, 0, (tx_stats_num + rx_stats_num) * 52424aeb56fSKuo Zhao sizeof(struct stats)); 52524aeb56fSKuo Zhao del_timer_sync(&priv->stats_report_timer); 52624aeb56fSKuo Zhao } 52724aeb56fSKuo Zhao return 0; 52824aeb56fSKuo Zhao } 52924aeb56fSKuo Zhao 5307e074d5aSDavid Awogbemila static int gve_get_link_ksettings(struct net_device *netdev, 5317e074d5aSDavid Awogbemila struct ethtool_link_ksettings *cmd) 5327e074d5aSDavid Awogbemila { 5337e074d5aSDavid Awogbemila struct gve_priv *priv = netdev_priv(netdev); 5347e074d5aSDavid Awogbemila int err = gve_adminq_report_link_speed(priv); 5357e074d5aSDavid Awogbemila 5367e074d5aSDavid Awogbemila cmd->base.speed = priv->link_speed; 5377e074d5aSDavid Awogbemila return err; 5387e074d5aSDavid Awogbemila } 5397e074d5aSDavid Awogbemila 540e5b845dcSCatherine Sullivan const struct ethtool_ops gve_ethtool_ops = { 541e5b845dcSCatherine Sullivan .get_drvinfo = gve_get_drvinfo, 542e5b845dcSCatherine Sullivan .get_strings = gve_get_strings, 543e5b845dcSCatherine Sullivan .get_sset_count = gve_get_sset_count, 544e5b845dcSCatherine Sullivan .get_ethtool_stats = gve_get_ethtool_stats, 545e5b845dcSCatherine Sullivan .set_msglevel = gve_set_msglevel, 546e5b845dcSCatherine Sullivan .get_msglevel = gve_get_msglevel, 547e5b845dcSCatherine Sullivan .set_channels = gve_set_channels, 548e5b845dcSCatherine Sullivan .get_channels = gve_get_channels, 549e5b845dcSCatherine Sullivan .get_link = ethtool_op_get_link, 550e5b845dcSCatherine Sullivan .get_ringparam = gve_get_ringparam, 551e5b845dcSCatherine Sullivan .reset = gve_user_reset, 552d5f7543cSKuo Zhao .get_tunable = gve_get_tunable, 553d5f7543cSKuo Zhao .set_tunable = gve_set_tunable, 55424aeb56fSKuo Zhao .get_priv_flags = gve_get_priv_flags, 55524aeb56fSKuo Zhao .set_priv_flags = gve_set_priv_flags, 5567e074d5aSDavid Awogbemila .get_link_ksettings = gve_get_link_ksettings 557e5b845dcSCatherine Sullivan }; 558