From: David VomLehn <voml...@texas.net>

Add the driver interfaces required for support by the ethtool utility.

Signed-off-by: Alexander Loktionov <alexander.loktio...@aquantia.com>
Signed-off-by: Dmitrii Tarakanov <dmitrii.taraka...@aquantia.com>
Signed-off-by: Pavel Belous <pavel.bel...@aquantia.com>
Signed-off-by: Dmitry Bezrukov <dmitry.bezru...@aquantia.com>
Signed-off-by: David M. VomLehn <voml...@texas.net>
---
 drivers/net/ethernet/aquantia/aq_ethtool.c | 250 +++++++++++++++++++++++++++++
 drivers/net/ethernet/aquantia/aq_ethtool.h |  19 +++
 2 files changed, 269 insertions(+)
 create mode 100644 drivers/net/ethernet/aquantia/aq_ethtool.c
 create mode 100644 drivers/net/ethernet/aquantia/aq_ethtool.h

diff --git a/drivers/net/ethernet/aquantia/aq_ethtool.c 
b/drivers/net/ethernet/aquantia/aq_ethtool.c
new file mode 100644
index 0000000..f11bdb1
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/aq_ethtool.c
@@ -0,0 +1,250 @@
+/*
+ * aQuantia Corporation Network Driver
+ * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+ *
+ * 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.
+ */
+
+/* File aq_ethtool.c: Definition of ethertool related functions. */
+
+#include "aq_ethtool.h"
+#include "aq_nic.h"
+
+static void aq_ethtool_get_regs(struct net_device *ndev,
+                               struct ethtool_regs *regs, void *p)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+       u32 regs_count = aq_nic_get_regs_count(aq_nic);
+
+       memset(p, 0, regs_count * sizeof(u32));
+       aq_nic_get_regs(aq_nic, regs, p);
+}
+
+static int aq_ethtool_get_regs_len(struct net_device *ndev)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+       u32 regs_count = aq_nic_get_regs_count(aq_nic);
+
+       return regs_count * sizeof(u32);
+}
+
+static u32 aq_ethtool_get_link(struct net_device *ndev)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+
+       return aq_nic_get_link_speed(aq_nic) ? 1U : 0U;
+}
+
+static int aq_ethtool_get_settings(struct net_device *ndev,
+                                  struct ethtool_cmd *cmd)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+
+       cmd->port = PORT_TP;
+       cmd->transceiver = XCVR_EXTERNAL;
+
+       ethtool_cmd_speed_set(cmd, netif_carrier_ok(ndev) ?
+                               aq_nic_get_link_speed(aq_nic) : 0U);
+
+       cmd->duplex = DUPLEX_FULL;
+       aq_nic_get_link_settings(aq_nic, cmd);
+       return 0;
+}
+
+static int aq_ethtool_set_settings(struct net_device *ndev,
+                                  struct ethtool_cmd *cmd)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+
+       return aq_nic_set_link_settings(aq_nic, cmd);
+}
+
+static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
+       "InPackets",
+       "InUCast",
+       "InMCast",
+       "InBCast",
+       "InErrors",
+       "OutPackets",
+       "OutUCast",
+       "OutMCast",
+       "OutBCast",
+       "InUCastOctects",
+       "OutUCastOctects",
+       "InMCastOctects",
+       "OutMCastOctects",
+       "InBCastOctects",
+       "OutBCastOctects",
+       "InOctects",
+       "OutOctects",
+       "InPacketsDma",
+       "OutPacketsDma",
+       "InOctetsDma",
+       "OutOctetsDma",
+       "InDroppedDma",
+       "Queue[0] InPackets",
+       "Queue[0] OutPackets",
+       "Queue[0] InJumboPackets",
+       "Queue[0] InLroPackets",
+       "Queue[0] InErrors",
+#if 1 < AQ_CFG_VECS_DEF
+       "Queue[1] InPackets",
+       "Queue[1] OutPackets",
+       "Queue[1] InJumboPackets",
+       "Queue[1] InLroPackets",
+       "Queue[1] InErrors",
+#endif
+#if 2 < AQ_CFG_VECS_DEF
+       "Queue[2] InPackets",
+       "Queue[2] OutPackets",
+       "Queue[2] InJumboPackets",
+       "Queue[2] InLroPackets",
+       "Queue[2] InErrors",
+#endif
+#if 3 < AQ_CFG_VECS_DEF
+       "Queue[3] InPackets",
+       "Queue[3] OutPackets",
+       "Queue[3] InJumboPackets",
+       "Queue[3] InLroPackets",
+       "Queue[3] InErrors",
+#endif
+#if 4 < AQ_CFG_VECS_DEF
+       "Queue[4] InPackets",
+       "Queue[4] OutPackets",
+       "Queue[4] InJumboPackets",
+       "Queue[4] InLroPackets",
+       "Queue[4] InErrors",
+#endif
+#if 5 < AQ_CFG_VECS_DEF
+       "Queue[5] InPackets",
+       "Queue[5] OutPackets",
+       "Queue[5] InJumboPackets",
+       "Queue[5] InLroPackets",
+       "Queue[5] InErrors",
+#endif
+#if 6 < AQ_CFG_VECS_DEF
+       "Queue[6] InPackets",
+       "Queue[6] OutPackets",
+       "Queue[6] InJumboPackets",
+       "Queue[6] InLroPackets",
+       "Queue[6] InErrors",
+#endif
+#if 7 < AQ_CFG_VECS_DEF
+       "Queue[7] InPackets",
+       "Queue[7] OutPackets",
+       "Queue[7] InJumboPackets",
+       "Queue[7] InLroPackets",
+       "Queue[7] InErrors",
+#endif
+};
+
+static void aq_ethtool_stats(struct net_device *ndev,
+                            struct ethtool_stats *stats, u64 *data)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+
+       memset(data, 0, ARRAY_SIZE(aq_ethtool_stat_names) * sizeof(u64));
+       aq_nic_get_stats(aq_nic, data);
+}
+
+static void aq_ethtool_get_drvinfo(struct net_device *ndev,
+                                  struct ethtool_drvinfo *drvinfo)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+       u32 firmware_version = aq_nic_get_fw_version(aq_nic);
+       u32 regs_count = aq_nic_get_regs_count(aq_nic);
+
+       strlcat(drvinfo->driver, AQ_CFG_DRV_NAME, sizeof(drvinfo->driver));
+       strlcat(drvinfo->version, AQ_CFG_DRV_VERSION, sizeof(drvinfo->version));
+
+       snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+                "%u.%u.%u", firmware_version >> 24,
+                (firmware_version >> 16) & 0xFFU, firmware_version & 0xFFFFU);
+
+       drvinfo->n_stats = ARRAY_SIZE(aq_ethtool_stat_names);
+       drvinfo->testinfo_len = 0;
+       drvinfo->regdump_len = regs_count;
+       drvinfo->eedump_len = 0;
+}
+
+static void aq_ethtool_get_strings(struct net_device *ndev,
+                                  u32 stringset, u8 *data)
+{
+       memcpy(data, *aq_ethtool_stat_names, sizeof(aq_ethtool_stat_names));
+}
+
+static int aq_ethtool_get_sset_count(struct net_device *ndev, int stringset)
+{
+       return ARRAY_SIZE(aq_ethtool_stat_names);
+}
+
+static u32 aq_ethtool_get_rss_indir_size(struct net_device *ndev)
+{
+       return AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
+}
+
+static u32 aq_ethtool_get_rss_key_size(struct net_device *ndev)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+       struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+
+       return sizeof(cfg->aq_rss.hash_secret_key);
+}
+
+static int aq_ethtool_get_rss(struct net_device *ndev, u32 *indir, u8 *key,
+                             u8 *hfunc)
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+       struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+       unsigned int i = 0U;
+
+       if (hfunc)
+               *hfunc = ETH_RSS_HASH_TOP; /* Toeplitz */
+       if (indir) {
+               for (i = 0; i < AQ_CFG_RSS_INDIRECTION_TABLE_MAX; i++)
+                       indir[i] = cfg->aq_rss.indirection_table[i];
+       }
+       if (key)
+               memcpy(key, cfg->aq_rss.hash_secret_key,
+                      sizeof(cfg->aq_rss.hash_secret_key));
+       return 0;
+}
+
+static int aq_ethtool_get_rxnfc(struct net_device *ndev,
+                               struct ethtool_rxnfc *cmd, u32 *rule_locs)
+
+{
+       struct aq_nic_s *aq_nic = (struct aq_nic_s *)netdev_priv(ndev);
+       struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+       int err = -EOPNOTSUPP;
+
+       switch (cmd->cmd) {
+       case ETHTOOL_GRXRINGS:
+               cmd->data = cfg->vecs;
+               err = 0;
+               break;
+
+       default:
+               break;
+       }
+
+       return err;
+}
+
+const struct ethtool_ops aq_ethtool_ops = {
+       .get_link            = aq_ethtool_get_link,
+       .get_regs_len        = aq_ethtool_get_regs_len,
+       .get_regs            = aq_ethtool_get_regs,
+       .get_settings        = aq_ethtool_get_settings,
+       .set_settings        = aq_ethtool_set_settings,
+       .get_drvinfo         = aq_ethtool_get_drvinfo,
+       .get_strings         = aq_ethtool_get_strings,
+       .get_rxfh_indir_size = aq_ethtool_get_rss_indir_size,
+       .get_rxfh_key_size   = aq_ethtool_get_rss_key_size,
+       .get_rxfh            = aq_ethtool_get_rss,
+       .get_rxnfc           = aq_ethtool_get_rxnfc,
+       .get_sset_count      = aq_ethtool_get_sset_count,
+       .get_ethtool_stats   = aq_ethtool_stats
+};
diff --git a/drivers/net/ethernet/aquantia/aq_ethtool.h 
b/drivers/net/ethernet/aquantia/aq_ethtool.h
new file mode 100644
index 0000000..21c126e
--- /dev/null
+++ b/drivers/net/ethernet/aquantia/aq_ethtool.h
@@ -0,0 +1,19 @@
+/*
+ * aQuantia Corporation Network Driver
+ * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
+ *
+ * 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.
+ */
+
+/* File aq_ethtool.h: Declaration of ethertool related functions. */
+
+#ifndef AQ_ETHTOOL_H
+#define AQ_ETHTOOL_H
+
+#include "aq_common.h"
+
+extern const struct ethtool_ops aq_ethtool_ops;
+
+#endif /* AQ_ETHTOOL_H */
-- 
2.7.4

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