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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c')
-rw-r--r--drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c1195
1 files changed, 1195 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
new file mode 100644
index 000000000..d53369e30
--- /dev/null
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -0,0 +1,1195 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2013 - 2019 Intel Corporation. */
+
+#include <linux/ethtool.h>
+#include <linux/vmalloc.h>
+
+#include "fm10k.h"
+
+struct fm10k_stats {
+ /* The stat_string is expected to be a format string formatted using
+ * vsnprintf by fm10k_add_stat_strings. Every member of a stats array
+ * should use the same format specifiers as they will be formatted
+ * using the same variadic arguments.
+ */
+ char stat_string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int stat_offset;
+};
+
+#define FM10K_STAT_FIELDS(_type, _name, _stat) { \
+ .stat_string = _name, \
+ .sizeof_stat = sizeof_field(_type, _stat), \
+ .stat_offset = offsetof(_type, _stat) \
+}
+
+/* netdevice statistics */
+#define FM10K_NETDEV_STAT(_net_stat) \
+ FM10K_STAT_FIELDS(struct net_device_stats, __stringify(_net_stat), \
+ _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)
+
+/* General interface statistics */
+#define FM10K_STAT(_name, _stat) \
+ FM10K_STAT_FIELDS(struct fm10k_intfc, _name, _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("reset_while_pending", hw.mac.reset_while_pending),
+
+ FM10K_STAT("tx_hang_count", tx_timeout_count),
+};
+
+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),
+};
+
+/* mailbox statistics */
+#define FM10K_MBX_STAT(_name, _stat) \
+ FM10K_STAT_FIELDS(struct fm10k_mbx_info, _name, _stat)
+
+static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
+ FM10K_MBX_STAT("mbx_tx_busy", tx_busy),
+ FM10K_MBX_STAT("mbx_tx_dropped", tx_dropped),
+ FM10K_MBX_STAT("mbx_tx_messages", tx_messages),
+ FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords),
+ FM10K_MBX_STAT("mbx_tx_mbmem_pulled", tx_mbmem_pulled),
+ 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),
+ FM10K_MBX_STAT("mbx_rx_mbmem_pushed", rx_mbmem_pushed),
+};
+
+/* per-queue ring statistics */
+#define FM10K_QUEUE_STAT(_name, _stat) \
+ FM10K_STAT_FIELDS(struct fm10k_ring, _name, _stat)
+
+static const struct fm10k_stats fm10k_gstrings_queue_stats[] = {
+ FM10K_QUEUE_STAT("%s_queue_%u_packets", stats.packets),
+ FM10K_QUEUE_STAT("%s_queue_%u_bytes", stats.bytes),
+};
+
+#define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_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 ARRAY_SIZE(fm10k_gstrings_queue_stats)
+
+#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_LEN,
+};
+
+static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
+};
+
+static void __fm10k_add_stat_strings(u8 **p, const struct fm10k_stats stats[],
+ const unsigned int size, ...)
+{
+ unsigned int i;
+
+ for (i = 0; i < size; i++) {
+ va_list args;
+
+ va_start(args, size);
+ vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
+ *p += ETH_GSTRING_LEN;
+ va_end(args);
+ }
+}
+
+#define fm10k_add_stat_strings(p, stats, ...) \
+ __fm10k_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
+
+static void fm10k_get_stat_strings(struct net_device *dev, u8 *data)
+{
+ struct fm10k_intfc *interface = netdev_priv(dev);
+ unsigned int i;
+
+ fm10k_add_stat_strings(&data, fm10k_gstrings_net_stats);
+
+ fm10k_add_stat_strings(&data, fm10k_gstrings_global_stats);
+
+ fm10k_add_stat_strings(&data, fm10k_gstrings_mbx_stats);
+
+ if (interface->hw.mac.type != fm10k_mac_vf)
+ fm10k_add_stat_strings(&data, fm10k_gstrings_pf_stats);
+
+ for (i = 0; i < interface->hw.mac.max_queues; i++) {
+ fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats,
+ "tx", i);
+
+ fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats,
+ "rx", i);
+ }
+}
+
+static void fm10k_get_strings(struct net_device *dev,
+ u32 stringset, u8 *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(data, 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_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 += hw->mac.max_queues * 2 * FM10K_QUEUE_STATS_LEN;
+
+ if (hw->mac.type != fm10k_mac_vf)
+ stats_len += FM10K_PF_STATS_LEN;
+
+ return stats_len;
+ case ETH_SS_PRIV_FLAGS:
+ return FM10K_PRV_FLAG_LEN;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void __fm10k_add_ethtool_stats(u64 **data, void *pointer,
+ const struct fm10k_stats stats[],
+ const unsigned int size)
+{
+ unsigned int i;
+
+ if (!pointer) {
+ /* memory is not zero allocated so we have to clear it */
+ for (i = 0; i < size; i++)
+ *((*data)++) = 0;
+ return;
+ }
+
+ for (i = 0; i < size; i++) {
+ char *p = (char *)pointer + stats[i].stat_offset;
+
+ switch (stats[i].sizeof_stat) {
+ case sizeof(u64):
+ *((*data)++) = *(u64 *)p;
+ break;
+ case sizeof(u32):
+ *((*data)++) = *(u32 *)p;
+ break;
+ case sizeof(u16):
+ *((*data)++) = *(u16 *)p;
+ break;
+ case sizeof(u8):
+ *((*data)++) = *(u8 *)p;
+ break;
+ default:
+ WARN_ONCE(1, "unexpected stat size for %s",
+ stats[i].stat_string);
+ *((*data)++) = 0;
+ }
+ }
+}
+
+#define fm10k_add_ethtool_stats(data, pointer, stats) \
+ __fm10k_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
+
+static void fm10k_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats __always_unused *stats,
+ u64 *data)
+{
+ struct fm10k_intfc *interface = netdev_priv(netdev);
+ struct net_device_stats *net_stats = &netdev->stats;
+ int i;
+
+ fm10k_update_stats(interface);
+
+ fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats);
+
+ fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats);
+
+ fm10k_add_ethtool_stats(&data, &interface->hw.mbx,
+ fm10k_gstrings_mbx_stats);
+
+ if (interface->hw.mac.type != fm10k_mac_vf) {
+ fm10k_add_ethtool_stats(&data, interface,
+ fm10k_gstrings_pf_stats);
+ }
+
+ for (i = 0; i < interface->hw.mac.max_queues; i++) {
+ struct fm10k_ring *ring;
+
+ ring = interface->tx_ring[i];
+ fm10k_add_ethtool_stats(&data, ring,
+ fm10k_gstrings_queue_stats);
+
+ ring = interface->rx_ring[i];
+ fm10k_add_ethtool_stats(&data, ring,
+ fm10k_gstrings_queue_stats);
+ }
+}
+
+/* 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 = BIT(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->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 kernel_ethtool_ringparam *kernel_ring,
+ struct netlink_ext_ack *extack)
+{
+ 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 kernel_ethtool_ringparam *kernel_ring,
+ struct netlink_ext_ack *extack)
+{
+ 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(array_size(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 kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct fm10k_intfc *interface = netdev_priv(dev);
+
+ ec->use_adaptive_tx_coalesce = ITR_IS_ADAPTIVE(interface->tx_itr);
+ ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
+
+ ec->use_adaptive_rx_coalesce = ITR_IS_ADAPTIVE(interface->rx_itr);
+ 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 kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct fm10k_intfc *interface = netdev_priv(dev);
+ 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_TX_ITR_DEFAULT;
+
+ if (ec->use_adaptive_rx_coalesce)
+ rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT;
+
+ /* update interface */
+ interface->tx_itr = tx_itr;
+ interface->rx_itr = rx_itr;
+
+ /* update q_vectors */
+ for (i = 0; i < interface->num_q_vectors; i++) {
+ struct fm10k_q_vector *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;
+ fallthrough;
+ case UDP_V4_FLOW:
+ if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
+ interface->flags))
+ cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ fallthrough;
+ 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 (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
+ interface->flags))
+ 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;
+}
+
+static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
+ struct ethtool_rxnfc *nfc)
+{
+ int rss_ipv4_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
+ interface->flags);
+ int rss_ipv6_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
+ 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:
+ clear_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
+ interface->flags);
+ break;
+ case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+ set_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
+ interface->flags);
+ 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:
+ clear_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
+ interface->flags);
+ break;
+ case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
+ set_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
+ interface->flags);
+ 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 something changed we need to update the MRQC register. Note that
+ * test_bit() is guaranteed to return strictly 0 or 1, so testing for
+ * equality is safe.
+ */
+ if ((rss_ipv4_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
+ interface->flags)) ||
+ (rss_ipv6_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
+ interface->flags))) {
+ struct fm10k_hw *hw = &interface->hw;
+ bool warn = false;
+ u32 mrqc;
+
+ /* Perform hash on these packet types */
+ mrqc = FM10K_MRQC_IPV4 |
+ FM10K_MRQC_TCP_IPV4 |
+ FM10K_MRQC_IPV6 |
+ FM10K_MRQC_TCP_IPV6;
+
+ if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
+ interface->flags)) {
+ mrqc |= FM10K_MRQC_UDP_IPV4;
+ warn = true;
+ }
+ if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
+ interface->flags)) {
+ mrqc |= FM10K_MRQC_UDP_IPV6;
+ warn = true;
+ }
+
+ /* If we enable UDP RSS display a warning that this may cause
+ * fragmented UDP packets to arrive out of order.
+ */
+ if (warn)
+ netif_warn(interface, drv, interface->netdev,
+ "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
+
+ 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 = -EINVAL;
+
+ /* 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 = BIT(FM10K_TEST_MSG_UNSET);
+ attr_flag < BIT(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)
+{
+ return 0;
+}
+
+static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
+{
+ if (priv_flags >= BIT(FM10K_PRV_FLAG_LEN))
+ return -EINVAL;
+
+ return 0;
+}
+
+static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
+{
+ return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
+}
+
+void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir)
+{
+ u16 rss_i = interface->ring_feature[RING_F_RSS].indices;
+ struct fm10k_hw *hw = &interface->hw;
+ u32 table[4];
+ int i, j;
+
+ /* record entries to reta table */
+ for (i = 0; i < FM10K_RETA_SIZE; i++) {
+ u32 reta, n;
+
+ /* generate a new table if we weren't given one */
+ for (j = 0; j < 4; j++) {
+ if (indir)
+ n = indir[4 * i + j];
+ else
+ n = ethtool_rxfh_indir_default(4 * i + j,
+ rss_i);
+
+ table[j] = n;
+ }
+
+ reta = table[0] |
+ (table[1] << 8) |
+ (table[2] << 16) |
+ (table[3] << 24);
+
+ if (interface->reta[i] == reta)
+ continue;
+
+ interface->reta[i] = reta;
+ fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
+ }
+}
+
+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);
+ 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;
+ }
+
+ fm10k_write_reta(interface, indir);
+
+ 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 = BIT((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);
+
+ /* report maximum channels */
+ ch->max_combined = fm10k_max_channels(dev);
+
+ /* report info for other vector */
+ ch->max_other = NON_Q_VECTORS;
+ 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;
+
+ /* 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)
+ 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 const struct ethtool_ops fm10k_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+ ETHTOOL_COALESCE_USE_ADAPTIVE,
+ .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 = ethtool_op_get_ts_info,
+};
+
+void fm10k_set_ethtool_ops(struct net_device *dev)
+{
+ dev->ethtool_ops = &fm10k_ethtool_ops;
+}