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- /* Intel Ethernet Switch Host Interface Driver
- * Copyright(c) 2013 - 2015 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Contact Information:
- * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- */
- #include <linux/vmalloc.h>
- #include "fm10k.h"
- struct fm10k_stats {
- char stat_string[ETH_GSTRING_LEN];
- int sizeof_stat;
- int stat_offset;
- };
- #define FM10K_NETDEV_STAT(_net_stat) { \
- .stat_string = #_net_stat, \
- .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
- .stat_offset = offsetof(struct net_device_stats, _net_stat) \
- }
- static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
- FM10K_NETDEV_STAT(tx_packets),
- FM10K_NETDEV_STAT(tx_bytes),
- FM10K_NETDEV_STAT(tx_errors),
- FM10K_NETDEV_STAT(rx_packets),
- FM10K_NETDEV_STAT(rx_bytes),
- FM10K_NETDEV_STAT(rx_errors),
- FM10K_NETDEV_STAT(rx_dropped),
- /* detailed Rx errors */
- FM10K_NETDEV_STAT(rx_length_errors),
- FM10K_NETDEV_STAT(rx_crc_errors),
- FM10K_NETDEV_STAT(rx_fifo_errors),
- };
- #define FM10K_NETDEV_STATS_LEN ARRAY_SIZE(fm10k_gstrings_net_stats)
- #define FM10K_STAT(_name, _stat) { \
- .stat_string = _name, \
- .sizeof_stat = FIELD_SIZEOF(struct fm10k_intfc, _stat), \
- .stat_offset = offsetof(struct fm10k_intfc, _stat) \
- }
- static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
- FM10K_STAT("tx_restart_queue", restart_queue),
- FM10K_STAT("tx_busy", tx_busy),
- FM10K_STAT("tx_csum_errors", tx_csum_errors),
- FM10K_STAT("rx_alloc_failed", alloc_failed),
- FM10K_STAT("rx_csum_errors", rx_csum_errors),
- FM10K_STAT("tx_packets_nic", tx_packets_nic),
- FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
- FM10K_STAT("rx_packets_nic", rx_packets_nic),
- FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
- FM10K_STAT("rx_drops_nic", rx_drops_nic),
- FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
- FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
- FM10K_STAT("swapi_status", hw.swapi.status),
- FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
- FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
- FM10K_STAT("tx_hang_count", tx_timeout_count),
- FM10K_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
- };
- static const struct fm10k_stats fm10k_gstrings_debug_stats[] = {
- FM10K_STAT("hw_sm_mbx_full", hw_sm_mbx_full),
- FM10K_STAT("hw_csum_tx_good", hw_csum_tx_good),
- FM10K_STAT("hw_csum_rx_good", hw_csum_rx_good),
- FM10K_STAT("rx_switch_errors", rx_switch_errors),
- FM10K_STAT("rx_drops", rx_drops),
- FM10K_STAT("rx_pp_errors", rx_pp_errors),
- FM10K_STAT("rx_link_errors", rx_link_errors),
- FM10K_STAT("rx_length_errors", rx_length_errors),
- };
- static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
- FM10K_STAT("timeout", stats.timeout.count),
- FM10K_STAT("ur", stats.ur.count),
- FM10K_STAT("ca", stats.ca.count),
- FM10K_STAT("um", stats.um.count),
- FM10K_STAT("xec", stats.xec.count),
- FM10K_STAT("vlan_drop", stats.vlan_drop.count),
- FM10K_STAT("loopback_drop", stats.loopback_drop.count),
- FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
- };
- #define FM10K_MBX_STAT(_name, _stat) { \
- .stat_string = _name, \
- .sizeof_stat = FIELD_SIZEOF(struct fm10k_mbx_info, _stat), \
- .stat_offset = offsetof(struct fm10k_mbx_info, _stat) \
- }
- static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
- FM10K_MBX_STAT("mbx_tx_busy", tx_busy),
- FM10K_MBX_STAT("mbx_tx_oversized", tx_dropped),
- FM10K_MBX_STAT("mbx_tx_messages", tx_messages),
- FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords),
- FM10K_MBX_STAT("mbx_rx_messages", rx_messages),
- FM10K_MBX_STAT("mbx_rx_dwords", rx_dwords),
- FM10K_MBX_STAT("mbx_rx_parse_err", rx_parse_err),
- };
- #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_stats)
- #define FM10K_DEBUG_STATS_LEN ARRAY_SIZE(fm10k_gstrings_debug_stats)
- #define FM10K_PF_STATS_LEN ARRAY_SIZE(fm10k_gstrings_pf_stats)
- #define FM10K_MBX_STATS_LEN ARRAY_SIZE(fm10k_gstrings_mbx_stats)
- #define FM10K_QUEUE_STATS_LEN(_n) \
- ( (_n) * 2 * (sizeof(struct fm10k_queue_stats) / sizeof(u64)))
- #define FM10K_STATIC_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
- FM10K_NETDEV_STATS_LEN + \
- FM10K_MBX_STATS_LEN)
- static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
- "Mailbox test (on/offline)"
- };
- #define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
- enum fm10k_self_test_types {
- FM10K_TEST_MBX,
- FM10K_TEST_MAX = FM10K_TEST_LEN
- };
- enum {
- FM10K_PRV_FLAG_DEBUG_STATS,
- FM10K_PRV_FLAG_LEN,
- };
- static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
- "debug-statistics",
- };
- 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;
- }
- 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;
- }
- 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;
- }
- }
- 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;
- }
- 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->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;
- }
- }
- }
- for (i = 0; i < interface->hw.mac.max_queues; i++) {
- snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_packets", i);
- p += ETH_GSTRING_LEN;
- snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i);
- p += ETH_GSTRING_LEN;
- snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_packets", i);
- p += ETH_GSTRING_LEN;
- snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i);
- p += ETH_GSTRING_LEN;
- }
- }
- static void fm10k_get_strings(struct net_device *dev,
- u32 stringset, u8 *data)
- {
- char *p = (char *)data;
- switch (stringset) {
- case ETH_SS_TEST:
- memcpy(data, *fm10k_gstrings_test,
- FM10K_TEST_LEN * ETH_GSTRING_LEN);
- break;
- case ETH_SS_STATS:
- fm10k_get_stat_strings(dev, data);
- break;
- case ETH_SS_PRIV_FLAGS:
- memcpy(p, fm10k_prv_flags,
- FM10K_PRV_FLAG_LEN * ETH_GSTRING_LEN);
- break;
- }
- }
- static int fm10k_get_sset_count(struct net_device *dev, int sset)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_iov_data *iov_data = interface->iov_data;
- struct fm10k_hw *hw = &interface->hw;
- int stats_len = FM10K_STATIC_STATS_LEN;
- switch (sset) {
- case ETH_SS_TEST:
- return FM10K_TEST_LEN;
- case ETH_SS_STATS:
- stats_len += FM10K_QUEUE_STATS_LEN(hw->mac.max_queues);
- if (hw->mac.type != fm10k_mac_vf)
- stats_len += FM10K_PF_STATS_LEN;
- if (interface->flags & FM10K_FLAG_DEBUG_STATS) {
- stats_len += FM10K_DEBUG_STATS_LEN;
- if (iov_data)
- stats_len += FM10K_MBX_STATS_LEN * iov_data->num_vfs;
- }
- return stats_len;
- case ETH_SS_PRIV_FLAGS:
- return FM10K_PRV_FLAG_LEN;
- default:
- return -EOPNOTSUPP;
- }
- }
- static void fm10k_get_ethtool_stats(struct net_device *netdev,
- struct ethtool_stats __always_unused *stats,
- u64 *data)
- {
- const int stat_count = sizeof(struct fm10k_queue_stats) / sizeof(u64);
- 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;
- }
- 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;
- }
- 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;
- }
- }
- 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;
- }
- 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;
- }
- }
- if ((interface->flags & FM10K_FLAG_DEBUG_STATS) && iov_data) {
- for (i = 0; i < iov_data->num_vfs; i++) {
- struct fm10k_vf_info *vf_info;
- 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;
- }
- }
- }
- for (i = 0; i < interface->hw.mac.max_queues; i++) {
- struct fm10k_ring *ring;
- u64 *queue_stat;
- ring = interface->tx_ring[i];
- if (ring)
- queue_stat = (u64 *)&ring->stats;
- for (j = 0; j < stat_count; j++)
- *(data++) = ring ? queue_stat[j] : 0;
- ring = interface->rx_ring[i];
- if (ring)
- queue_stat = (u64 *)&ring->stats;
- for (j = 0; j < stat_count; j++)
- *(data++) = ring ? queue_stat[j] : 0;
- }
- }
- /* If function below adds more registers this define needs to be updated */
- #define FM10K_REGS_LEN_Q 29
- static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
- {
- int idx = 0;
- buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
- buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
- BUG_ON(idx != FM10K_REGS_LEN_Q);
- }
- /* If function above adds more registers this define needs to be updated */
- #define FM10K_REGS_LEN_VSI 43
- static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
- {
- int idx = 0, j;
- buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
- for (j = 0; j < 10; j++)
- buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
- for (j = 0; j < 32; j++)
- buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
- BUG_ON(idx != FM10K_REGS_LEN_VSI);
- }
- static void fm10k_get_regs(struct net_device *netdev,
- struct ethtool_regs *regs, void *p)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct fm10k_hw *hw = &interface->hw;
- u32 *buff = p;
- u16 i;
- regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
- switch (hw->mac.type) {
- case fm10k_mac_pf:
- /* General PF Registers */
- *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
- *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
- *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
- *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
- for (i = 0; i < 8; i++) {
- *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
- *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
- }
- for (i = 0; i < 65; i++) {
- fm10k_get_reg_vsi(hw, buff, i);
- buff += FM10K_REGS_LEN_VSI;
- }
- *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
- *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
- for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
- fm10k_get_reg_q(hw, buff, i);
- buff += FM10K_REGS_LEN_Q;
- }
- *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
- for (i = 0; i < 8; i++)
- *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
- /* Interrupt Throttling Registers */
- for (i = 0; i < 130; i++)
- *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
- break;
- case fm10k_mac_vf:
- /* General VF registers */
- *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
- *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
- *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
- /* Interrupt Throttling Registers */
- for (i = 0; i < 8; i++)
- *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
- fm10k_get_reg_vsi(hw, buff, 0);
- buff += FM10K_REGS_LEN_VSI;
- for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
- if (i < hw->mac.max_queues)
- fm10k_get_reg_q(hw, buff, i);
- else
- memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
- buff += FM10K_REGS_LEN_Q;
- }
- break;
- default:
- return;
- }
- }
- /* If function above adds more registers these define need to be updated */
- #define FM10K_REGS_LEN_PF \
- (162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
- #define FM10K_REGS_LEN_VF \
- (11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
- static int fm10k_get_regs_len(struct net_device *netdev)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct fm10k_hw *hw = &interface->hw;
- switch (hw->mac.type) {
- case fm10k_mac_pf:
- return FM10K_REGS_LEN_PF * sizeof(u32);
- case fm10k_mac_vf:
- return FM10K_REGS_LEN_VF * sizeof(u32);
- default:
- return 0;
- }
- }
- static void fm10k_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- strncpy(info->driver, fm10k_driver_name,
- sizeof(info->driver) - 1);
- strncpy(info->version, fm10k_driver_version,
- sizeof(info->version) - 1);
- strncpy(info->bus_info, pci_name(interface->pdev),
- sizeof(info->bus_info) - 1);
- }
- static void fm10k_get_pauseparam(struct net_device *dev,
- struct ethtool_pauseparam *pause)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- /* record fixed values for autoneg and tx pause */
- pause->autoneg = 0;
- pause->tx_pause = 1;
- pause->rx_pause = interface->rx_pause ? 1 : 0;
- }
- static int fm10k_set_pauseparam(struct net_device *dev,
- struct ethtool_pauseparam *pause)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_hw *hw = &interface->hw;
- if (pause->autoneg || !pause->tx_pause)
- return -EINVAL;
- /* we can only support pause on the PF to avoid head-of-line blocking */
- if (hw->mac.type == fm10k_mac_pf)
- interface->rx_pause = pause->rx_pause ? ~0 : 0;
- else if (pause->rx_pause)
- return -EINVAL;
- if (netif_running(dev))
- fm10k_update_rx_drop_en(interface);
- return 0;
- }
- static u32 fm10k_get_msglevel(struct net_device *netdev)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- return interface->msg_enable;
- }
- static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- interface->msg_enable = data;
- }
- static void fm10k_get_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- ring->rx_max_pending = FM10K_MAX_RXD;
- ring->tx_max_pending = FM10K_MAX_TXD;
- ring->rx_mini_max_pending = 0;
- ring->rx_jumbo_max_pending = 0;
- ring->rx_pending = interface->rx_ring_count;
- ring->tx_pending = interface->tx_ring_count;
- ring->rx_mini_pending = 0;
- ring->rx_jumbo_pending = 0;
- }
- static int fm10k_set_ringparam(struct net_device *netdev,
- struct ethtool_ringparam *ring)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct fm10k_ring *temp_ring;
- int i, err = 0;
- u32 new_rx_count, new_tx_count;
- if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
- return -EINVAL;
- new_tx_count = clamp_t(u32, ring->tx_pending,
- FM10K_MIN_TXD, FM10K_MAX_TXD);
- new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE);
- new_rx_count = clamp_t(u32, ring->rx_pending,
- FM10K_MIN_RXD, FM10K_MAX_RXD);
- new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE);
- if ((new_tx_count == interface->tx_ring_count) &&
- (new_rx_count == interface->rx_ring_count)) {
- /* nothing to do */
- return 0;
- }
- while (test_and_set_bit(__FM10K_RESETTING, &interface->state))
- usleep_range(1000, 2000);
- if (!netif_running(interface->netdev)) {
- for (i = 0; i < interface->num_tx_queues; i++)
- interface->tx_ring[i]->count = new_tx_count;
- for (i = 0; i < interface->num_rx_queues; i++)
- interface->rx_ring[i]->count = new_rx_count;
- interface->tx_ring_count = new_tx_count;
- interface->rx_ring_count = new_rx_count;
- goto clear_reset;
- }
- /* allocate temporary buffer to store rings in */
- i = max_t(int, interface->num_tx_queues, interface->num_rx_queues);
- temp_ring = vmalloc(i * sizeof(struct fm10k_ring));
- if (!temp_ring) {
- err = -ENOMEM;
- goto clear_reset;
- }
- fm10k_down(interface);
- /* Setup new Tx resources and free the old Tx resources in that order.
- * We can then assign the new resources to the rings via a memcpy.
- * The advantage to this approach is that we are guaranteed to still
- * have resources even in the case of an allocation failure.
- */
- if (new_tx_count != interface->tx_ring_count) {
- for (i = 0; i < interface->num_tx_queues; i++) {
- memcpy(&temp_ring[i], interface->tx_ring[i],
- sizeof(struct fm10k_ring));
- temp_ring[i].count = new_tx_count;
- err = fm10k_setup_tx_resources(&temp_ring[i]);
- if (err) {
- while (i) {
- i--;
- fm10k_free_tx_resources(&temp_ring[i]);
- }
- goto err_setup;
- }
- }
- for (i = 0; i < interface->num_tx_queues; i++) {
- fm10k_free_tx_resources(interface->tx_ring[i]);
- memcpy(interface->tx_ring[i], &temp_ring[i],
- sizeof(struct fm10k_ring));
- }
- interface->tx_ring_count = new_tx_count;
- }
- /* Repeat the process for the Rx rings if needed */
- if (new_rx_count != interface->rx_ring_count) {
- for (i = 0; i < interface->num_rx_queues; i++) {
- memcpy(&temp_ring[i], interface->rx_ring[i],
- sizeof(struct fm10k_ring));
- temp_ring[i].count = new_rx_count;
- err = fm10k_setup_rx_resources(&temp_ring[i]);
- if (err) {
- while (i) {
- i--;
- fm10k_free_rx_resources(&temp_ring[i]);
- }
- goto err_setup;
- }
- }
- for (i = 0; i < interface->num_rx_queues; i++) {
- fm10k_free_rx_resources(interface->rx_ring[i]);
- memcpy(interface->rx_ring[i], &temp_ring[i],
- sizeof(struct fm10k_ring));
- }
- interface->rx_ring_count = new_rx_count;
- }
- err_setup:
- fm10k_up(interface);
- vfree(temp_ring);
- clear_reset:
- clear_bit(__FM10K_RESETTING, &interface->state);
- return err;
- }
- static int fm10k_get_coalesce(struct net_device *dev,
- struct ethtool_coalesce *ec)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- ec->use_adaptive_tx_coalesce =
- !!(interface->tx_itr & FM10K_ITR_ADAPTIVE);
- ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
- ec->use_adaptive_rx_coalesce =
- !!(interface->rx_itr & FM10K_ITR_ADAPTIVE);
- ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE;
- return 0;
- }
- static int fm10k_set_coalesce(struct net_device *dev,
- struct ethtool_coalesce *ec)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_q_vector *qv;
- u16 tx_itr, rx_itr;
- int i;
- /* verify limits */
- if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
- (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
- return -EINVAL;
- /* record settings */
- tx_itr = ec->tx_coalesce_usecs;
- rx_itr = ec->rx_coalesce_usecs;
- /* set initial values for adaptive ITR */
- if (ec->use_adaptive_tx_coalesce)
- tx_itr = FM10K_ITR_ADAPTIVE | FM10K_ITR_10K;
- if (ec->use_adaptive_rx_coalesce)
- rx_itr = FM10K_ITR_ADAPTIVE | FM10K_ITR_20K;
- /* update interface */
- interface->tx_itr = tx_itr;
- interface->rx_itr = rx_itr;
- /* update q_vectors */
- for (i = 0; i < interface->num_q_vectors; i++) {
- qv = interface->q_vector[i];
- qv->tx.itr = tx_itr;
- qv->rx.itr = rx_itr;
- }
- return 0;
- }
- static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
- struct ethtool_rxnfc *cmd)
- {
- cmd->data = 0;
- /* Report default options for RSS on fm10k */
- switch (cmd->flow_type) {
- case TCP_V4_FLOW:
- case TCP_V6_FLOW:
- cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
- /* fall through */
- case UDP_V4_FLOW:
- if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
- cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
- /* fall through */
- case SCTP_V4_FLOW:
- case SCTP_V6_FLOW:
- case AH_ESP_V4_FLOW:
- case AH_ESP_V6_FLOW:
- case AH_V4_FLOW:
- case AH_V6_FLOW:
- case ESP_V4_FLOW:
- case ESP_V6_FLOW:
- case IPV4_FLOW:
- case IPV6_FLOW:
- cmd->data |= RXH_IP_SRC | RXH_IP_DST;
- break;
- case UDP_V6_FLOW:
- if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
- cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
- cmd->data |= RXH_IP_SRC | RXH_IP_DST;
- break;
- default:
- return -EINVAL;
- }
- return 0;
- }
- static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
- u32 __always_unused *rule_locs)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- int ret = -EOPNOTSUPP;
- switch (cmd->cmd) {
- case ETHTOOL_GRXRINGS:
- cmd->data = interface->num_rx_queues;
- ret = 0;
- break;
- case ETHTOOL_GRXFH:
- ret = fm10k_get_rss_hash_opts(interface, cmd);
- break;
- default:
- break;
- }
- return ret;
- }
- #define UDP_RSS_FLAGS (FM10K_FLAG_RSS_FIELD_IPV4_UDP | \
- FM10K_FLAG_RSS_FIELD_IPV6_UDP)
- static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
- struct ethtool_rxnfc *nfc)
- {
- u32 flags = interface->flags;
- /* RSS does not support anything other than hashing
- * to queues on src and dst IPs and ports
- */
- if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
- RXH_L4_B_0_1 | RXH_L4_B_2_3))
- return -EINVAL;
- switch (nfc->flow_type) {
- case TCP_V4_FLOW:
- case TCP_V6_FLOW:
- if (!(nfc->data & RXH_IP_SRC) ||
- !(nfc->data & RXH_IP_DST) ||
- !(nfc->data & RXH_L4_B_0_1) ||
- !(nfc->data & RXH_L4_B_2_3))
- return -EINVAL;
- break;
- case UDP_V4_FLOW:
- if (!(nfc->data & RXH_IP_SRC) ||
- !(nfc->data & RXH_IP_DST))
- return -EINVAL;
- switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
- case 0:
- flags &= ~FM10K_FLAG_RSS_FIELD_IPV4_UDP;
- break;
- case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
- flags |= FM10K_FLAG_RSS_FIELD_IPV4_UDP;
- break;
- default:
- return -EINVAL;
- }
- break;
- case UDP_V6_FLOW:
- if (!(nfc->data & RXH_IP_SRC) ||
- !(nfc->data & RXH_IP_DST))
- return -EINVAL;
- switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
- case 0:
- flags &= ~FM10K_FLAG_RSS_FIELD_IPV6_UDP;
- break;
- case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
- flags |= FM10K_FLAG_RSS_FIELD_IPV6_UDP;
- break;
- default:
- return -EINVAL;
- }
- break;
- case AH_ESP_V4_FLOW:
- case AH_V4_FLOW:
- case ESP_V4_FLOW:
- case SCTP_V4_FLOW:
- case AH_ESP_V6_FLOW:
- case AH_V6_FLOW:
- case ESP_V6_FLOW:
- case SCTP_V6_FLOW:
- if (!(nfc->data & RXH_IP_SRC) ||
- !(nfc->data & RXH_IP_DST) ||
- (nfc->data & RXH_L4_B_0_1) ||
- (nfc->data & RXH_L4_B_2_3))
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
- /* if we changed something we need to update flags */
- if (flags != interface->flags) {
- struct fm10k_hw *hw = &interface->hw;
- u32 mrqc;
- if ((flags & UDP_RSS_FLAGS) &&
- !(interface->flags & UDP_RSS_FLAGS))
- netif_warn(interface, drv, interface->netdev,
- "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
- interface->flags = flags;
- /* Perform hash on these packet types */
- mrqc = FM10K_MRQC_IPV4 |
- FM10K_MRQC_TCP_IPV4 |
- FM10K_MRQC_IPV6 |
- FM10K_MRQC_TCP_IPV6;
- if (flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
- mrqc |= FM10K_MRQC_UDP_IPV4;
- if (flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
- mrqc |= FM10K_MRQC_UDP_IPV6;
- fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
- }
- return 0;
- }
- static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- int ret = -EOPNOTSUPP;
- switch (cmd->cmd) {
- case ETHTOOL_SRXFH:
- ret = fm10k_set_rss_hash_opt(interface, cmd);
- break;
- default:
- break;
- }
- return ret;
- }
- static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
- {
- struct fm10k_hw *hw = &interface->hw;
- struct fm10k_mbx_info *mbx = &hw->mbx;
- u32 attr_flag, test_msg[6];
- unsigned long timeout;
- int err;
- /* For now this is a VF only feature */
- if (hw->mac.type != fm10k_mac_vf)
- return 0;
- /* loop through both nested and unnested attribute types */
- for (attr_flag = (1 << FM10K_TEST_MSG_UNSET);
- attr_flag < (1 << (2 * FM10K_TEST_MSG_NESTED));
- attr_flag += attr_flag) {
- /* generate message to be tested */
- fm10k_tlv_msg_test_create(test_msg, attr_flag);
- fm10k_mbx_lock(interface);
- mbx->test_result = FM10K_NOT_IMPLEMENTED;
- err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
- fm10k_mbx_unlock(interface);
- /* wait up to 1 second for response */
- timeout = jiffies + HZ;
- do {
- if (err < 0)
- goto err_out;
- usleep_range(500, 1000);
- fm10k_mbx_lock(interface);
- mbx->ops.process(hw, mbx);
- fm10k_mbx_unlock(interface);
- err = mbx->test_result;
- if (!err)
- break;
- } while (time_is_after_jiffies(timeout));
- /* reporting errors */
- if (err)
- goto err_out;
- }
- err_out:
- *data = err < 0 ? (attr_flag) : (err > 0);
- return err;
- }
- static void fm10k_self_test(struct net_device *dev,
- struct ethtool_test *eth_test, u64 *data)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_hw *hw = &interface->hw;
- memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
- if (FM10K_REMOVED(hw->hw_addr)) {
- netif_err(interface, drv, dev,
- "Interface removed - test blocked\n");
- eth_test->flags |= ETH_TEST_FL_FAILED;
- return;
- }
- if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
- eth_test->flags |= ETH_TEST_FL_FAILED;
- }
- static u32 fm10k_get_priv_flags(struct net_device *netdev)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- u32 priv_flags = 0;
- if (interface->flags & FM10K_FLAG_DEBUG_STATS)
- priv_flags |= 1 << FM10K_PRV_FLAG_DEBUG_STATS;
- return priv_flags;
- }
- static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- if (priv_flags >= (1 << FM10K_PRV_FLAG_LEN))
- return -EINVAL;
- if (priv_flags & (1 << FM10K_PRV_FLAG_DEBUG_STATS))
- interface->flags |= FM10K_FLAG_DEBUG_STATS;
- else
- interface->flags &= ~FM10K_FLAG_DEBUG_STATS;
- return 0;
- }
- static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
- {
- return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
- }
- static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- int i;
- if (!indir)
- return 0;
- for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
- u32 reta = interface->reta[i];
- indir[0] = (reta << 24) >> 24;
- indir[1] = (reta << 16) >> 24;
- indir[2] = (reta << 8) >> 24;
- indir[3] = (reta) >> 24;
- }
- return 0;
- }
- static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct fm10k_hw *hw = &interface->hw;
- int i;
- u16 rss_i;
- if (!indir)
- return 0;
- /* Verify user input. */
- rss_i = interface->ring_feature[RING_F_RSS].indices;
- for (i = fm10k_get_reta_size(netdev); i--;) {
- if (indir[i] < rss_i)
- continue;
- return -EINVAL;
- }
- /* record entries to reta table */
- for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
- u32 reta = indir[0] |
- (indir[1] << 8) |
- (indir[2] << 16) |
- (indir[3] << 24);
- if (interface->reta[i] == reta)
- continue;
- interface->reta[i] = reta;
- fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
- }
- return 0;
- }
- static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev)
- {
- return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
- }
- static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key,
- u8 *hfunc)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- int i, err;
- if (hfunc)
- *hfunc = ETH_RSS_HASH_TOP;
- err = fm10k_get_reta(netdev, indir);
- if (err || !key)
- return err;
- for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
- *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
- return 0;
- }
- static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir,
- const u8 *key, const u8 hfunc)
- {
- struct fm10k_intfc *interface = netdev_priv(netdev);
- struct fm10k_hw *hw = &interface->hw;
- int i, err;
- /* We do not allow change in unsupported parameters */
- if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
- return -EOPNOTSUPP;
- err = fm10k_set_reta(netdev, indir);
- if (err || !key)
- return err;
- for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) {
- u32 rssrk = le32_to_cpu(*(__le32 *)key);
- if (interface->rssrk[i] == rssrk)
- continue;
- interface->rssrk[i] = rssrk;
- fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
- }
- return 0;
- }
- static unsigned int fm10k_max_channels(struct net_device *dev)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- unsigned int max_combined = interface->hw.mac.max_queues;
- u8 tcs = netdev_get_num_tc(dev);
- /* For QoS report channels per traffic class */
- if (tcs > 1)
- max_combined = 1 << (fls(max_combined / tcs) - 1);
- return max_combined;
- }
- static void fm10k_get_channels(struct net_device *dev,
- struct ethtool_channels *ch)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- struct fm10k_hw *hw = &interface->hw;
- /* report maximum channels */
- ch->max_combined = fm10k_max_channels(dev);
- /* report info for other vector */
- ch->max_other = NON_Q_VECTORS(hw);
- ch->other_count = ch->max_other;
- /* record RSS queues */
- ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
- }
- static int fm10k_set_channels(struct net_device *dev,
- struct ethtool_channels *ch)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- unsigned int count = ch->combined_count;
- struct fm10k_hw *hw = &interface->hw;
- /* verify they are not requesting separate vectors */
- if (!count || ch->rx_count || ch->tx_count)
- return -EINVAL;
- /* verify other_count has not changed */
- if (ch->other_count != NON_Q_VECTORS(hw))
- return -EINVAL;
- /* verify the number of channels does not exceed hardware limits */
- if (count > fm10k_max_channels(dev))
- return -EINVAL;
- interface->ring_feature[RING_F_RSS].limit = count;
- /* use setup TC to update any traffic class queue mapping */
- return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
- }
- static int fm10k_get_ts_info(struct net_device *dev,
- struct ethtool_ts_info *info)
- {
- struct fm10k_intfc *interface = netdev_priv(dev);
- info->so_timestamping =
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_RX_SOFTWARE |
- SOF_TIMESTAMPING_SOFTWARE |
- SOF_TIMESTAMPING_TX_HARDWARE |
- SOF_TIMESTAMPING_RX_HARDWARE |
- SOF_TIMESTAMPING_RAW_HARDWARE;
- if (interface->ptp_clock)
- info->phc_index = ptp_clock_index(interface->ptp_clock);
- else
- info->phc_index = -1;
- info->tx_types = (1 << HWTSTAMP_TX_OFF) |
- (1 << HWTSTAMP_TX_ON);
- info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
- (1 << HWTSTAMP_FILTER_ALL);
- return 0;
- }
- static const struct ethtool_ops fm10k_ethtool_ops = {
- .get_strings = fm10k_get_strings,
- .get_sset_count = fm10k_get_sset_count,
- .get_ethtool_stats = fm10k_get_ethtool_stats,
- .get_drvinfo = fm10k_get_drvinfo,
- .get_link = ethtool_op_get_link,
- .get_pauseparam = fm10k_get_pauseparam,
- .set_pauseparam = fm10k_set_pauseparam,
- .get_msglevel = fm10k_get_msglevel,
- .set_msglevel = fm10k_set_msglevel,
- .get_ringparam = fm10k_get_ringparam,
- .set_ringparam = fm10k_set_ringparam,
- .get_coalesce = fm10k_get_coalesce,
- .set_coalesce = fm10k_set_coalesce,
- .get_rxnfc = fm10k_get_rxnfc,
- .set_rxnfc = fm10k_set_rxnfc,
- .get_regs = fm10k_get_regs,
- .get_regs_len = fm10k_get_regs_len,
- .self_test = fm10k_self_test,
- .get_priv_flags = fm10k_get_priv_flags,
- .set_priv_flags = fm10k_set_priv_flags,
- .get_rxfh_indir_size = fm10k_get_reta_size,
- .get_rxfh_key_size = fm10k_get_rssrk_size,
- .get_rxfh = fm10k_get_rssh,
- .set_rxfh = fm10k_set_rssh,
- .get_channels = fm10k_get_channels,
- .set_channels = fm10k_set_channels,
- .get_ts_info = fm10k_get_ts_info,
- };
- void fm10k_set_ethtool_ops(struct net_device *dev)
- {
- dev->ethtool_ops = &fm10k_ethtool_ops;
- }
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