summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c')
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c897
1 files changed, 897 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
new file mode 100644
index 000000000..598888264
--- /dev/null
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
@@ -0,0 +1,897 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ * Copyright 2020 NXP
+ */
+
+#include <linux/net_tstamp.h>
+#include <linux/nospec.h>
+
+#include "dpni.h" /* DPNI_LINK_OPT_* */
+#include "dpaa2-eth.h"
+
+/* To be kept in sync with DPNI statistics */
+static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
+ "[hw] rx frames",
+ "[hw] rx bytes",
+ "[hw] rx mcast frames",
+ "[hw] rx mcast bytes",
+ "[hw] rx bcast frames",
+ "[hw] rx bcast bytes",
+ "[hw] tx frames",
+ "[hw] tx bytes",
+ "[hw] tx mcast frames",
+ "[hw] tx mcast bytes",
+ "[hw] tx bcast frames",
+ "[hw] tx bcast bytes",
+ "[hw] rx filtered frames",
+ "[hw] rx discarded frames",
+ "[hw] rx nobuffer discards",
+ "[hw] tx discarded frames",
+ "[hw] tx confirmed frames",
+ "[hw] tx dequeued bytes",
+ "[hw] tx dequeued frames",
+ "[hw] tx rejected bytes",
+ "[hw] tx rejected frames",
+ "[hw] tx pending frames",
+};
+
+#define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats)
+
+static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
+ /* per-cpu stats */
+ "[drv] tx conf frames",
+ "[drv] tx conf bytes",
+ "[drv] tx sg frames",
+ "[drv] tx sg bytes",
+ "[drv] tx tso frames",
+ "[drv] tx tso bytes",
+ "[drv] rx sg frames",
+ "[drv] rx sg bytes",
+ "[drv] tx converted sg frames",
+ "[drv] tx converted sg bytes",
+ "[drv] enqueue portal busy",
+ /* Channel stats */
+ "[drv] dequeue portal busy",
+ "[drv] channel pull errors",
+ "[drv] cdan",
+ "[drv] xdp drop",
+ "[drv] xdp tx",
+ "[drv] xdp tx errors",
+ "[drv] xdp redirect",
+ /* FQ stats */
+ "[qbman] rx pending frames",
+ "[qbman] rx pending bytes",
+ "[qbman] tx conf pending frames",
+ "[qbman] tx conf pending bytes",
+ "[qbman] buffer count",
+};
+
+#define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
+
+static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
+
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
+
+ strscpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
+ sizeof(drvinfo->bus_info));
+}
+
+static int dpaa2_eth_nway_reset(struct net_device *net_dev)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ if (dpaa2_eth_is_type_phy(priv))
+ return phylink_ethtool_nway_reset(priv->mac->phylink);
+
+ return -EOPNOTSUPP;
+}
+
+static int
+dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
+ struct ethtool_link_ksettings *link_settings)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ if (dpaa2_eth_is_type_phy(priv))
+ return phylink_ethtool_ksettings_get(priv->mac->phylink,
+ link_settings);
+
+ link_settings->base.autoneg = AUTONEG_DISABLE;
+ if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX))
+ link_settings->base.duplex = DUPLEX_FULL;
+ link_settings->base.speed = priv->link_state.rate;
+
+ return 0;
+}
+
+static int
+dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
+ const struct ethtool_link_ksettings *link_settings)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ if (!dpaa2_eth_is_type_phy(priv))
+ return -ENOTSUPP;
+
+ return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings);
+}
+
+static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ u64 link_options = priv->link_state.options;
+
+ if (dpaa2_eth_is_type_phy(priv)) {
+ phylink_ethtool_get_pauseparam(priv->mac->phylink, pause);
+ return;
+ }
+
+ pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
+ pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
+ pause->autoneg = AUTONEG_DISABLE;
+}
+
+static int dpaa2_eth_set_pauseparam(struct net_device *net_dev,
+ struct ethtool_pauseparam *pause)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpni_link_cfg cfg = {0};
+ int err;
+
+ if (!dpaa2_eth_has_pause_support(priv)) {
+ netdev_info(net_dev, "No pause frame support for DPNI version < %d.%d\n",
+ DPNI_PAUSE_VER_MAJOR, DPNI_PAUSE_VER_MINOR);
+ return -EOPNOTSUPP;
+ }
+
+ if (dpaa2_eth_is_type_phy(priv))
+ return phylink_ethtool_set_pauseparam(priv->mac->phylink,
+ pause);
+ if (pause->autoneg)
+ return -EOPNOTSUPP;
+
+ cfg.rate = priv->link_state.rate;
+ cfg.options = priv->link_state.options;
+ if (pause->rx_pause)
+ cfg.options |= DPNI_LINK_OPT_PAUSE;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_PAUSE;
+ if (!!pause->rx_pause ^ !!pause->tx_pause)
+ cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE;
+ else
+ cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE;
+
+ if (cfg.options == priv->link_state.options)
+ return 0;
+
+ err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg);
+ if (err) {
+ netdev_err(net_dev, "dpni_set_link_state failed\n");
+ return err;
+ }
+
+ priv->link_state.options = cfg.options;
+
+ return 0;
+}
+
+static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *data)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(netdev);
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_STATS:
+ for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
+ strscpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) {
+ strscpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ if (dpaa2_eth_has_mac(priv))
+ dpaa2_mac_get_strings(p);
+ break;
+ }
+}
+
+static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
+{
+ int num_ss_stats = DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS;
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+
+ switch (sset) {
+ case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
+ if (dpaa2_eth_has_mac(priv))
+ num_ss_stats += dpaa2_mac_get_sset_count();
+ return num_ss_stats;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+/** Fill in hardware counters, as returned by MC.
+ */
+static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ union dpni_statistics dpni_stats;
+ int dpni_stats_page_size[DPNI_STATISTICS_CNT] = {
+ sizeof(dpni_stats.page_0),
+ sizeof(dpni_stats.page_1),
+ sizeof(dpni_stats.page_2),
+ sizeof(dpni_stats.page_3),
+ sizeof(dpni_stats.page_4),
+ sizeof(dpni_stats.page_5),
+ sizeof(dpni_stats.page_6),
+ };
+ u32 fcnt_rx_total = 0, fcnt_tx_total = 0;
+ u32 bcnt_rx_total = 0, bcnt_tx_total = 0;
+ struct dpaa2_eth_ch_stats *ch_stats;
+ struct dpaa2_eth_drv_stats *extras;
+ int j, k, err, num_cnt, i = 0;
+ u32 fcnt, bcnt;
+ u32 buf_cnt;
+
+ memset(data, 0,
+ sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
+
+ /* Print standard counters, from DPNI statistics */
+ for (j = 0; j <= 6; j++) {
+ /* We're not interested in pages 4 & 5 for now */
+ if (j == 4 || j == 5)
+ continue;
+ err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token,
+ j, &dpni_stats);
+ if (err == -EINVAL)
+ /* Older firmware versions don't support all pages */
+ memset(&dpni_stats, 0, sizeof(dpni_stats));
+ else if (err)
+ netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j);
+
+ num_cnt = dpni_stats_page_size[j] / sizeof(u64);
+ for (k = 0; k < num_cnt; k++)
+ *(data + i++) = dpni_stats.raw.counter[k];
+ }
+
+ /* Print per-cpu extra stats */
+ for_each_online_cpu(k) {
+ extras = per_cpu_ptr(priv->percpu_extras, k);
+ for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
+ *((__u64 *)data + i + j) += *((__u64 *)extras + j);
+ }
+ i += j;
+
+ /* Per-channel stats */
+ for (k = 0; k < priv->num_channels; k++) {
+ ch_stats = &priv->channel[k]->stats;
+ for (j = 0; j < DPAA2_ETH_CH_STATS; j++)
+ *((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
+ }
+ i += j;
+
+ for (j = 0; j < priv->num_fqs; j++) {
+ /* Print FQ instantaneous counts */
+ err = dpaa2_io_query_fq_count(NULL, priv->fq[j].fqid,
+ &fcnt, &bcnt);
+ if (err) {
+ netdev_warn(net_dev, "FQ query error %d", err);
+ return;
+ }
+
+ if (priv->fq[j].type == DPAA2_TX_CONF_FQ) {
+ fcnt_tx_total += fcnt;
+ bcnt_tx_total += bcnt;
+ } else {
+ fcnt_rx_total += fcnt;
+ bcnt_rx_total += bcnt;
+ }
+ }
+
+ *(data + i++) = fcnt_rx_total;
+ *(data + i++) = bcnt_rx_total;
+ *(data + i++) = fcnt_tx_total;
+ *(data + i++) = bcnt_tx_total;
+
+ err = dpaa2_io_query_bp_count(NULL, priv->bpid, &buf_cnt);
+ if (err) {
+ netdev_warn(net_dev, "Buffer count query error %d\n", err);
+ return;
+ }
+ *(data + i++) = buf_cnt;
+
+ if (dpaa2_eth_has_mac(priv))
+ dpaa2_mac_get_ethtool_stats(priv->mac, data + i);
+}
+
+static int dpaa2_eth_prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask,
+ void *key, void *mask, u64 *fields)
+{
+ int off;
+
+ if (eth_mask->h_proto) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
+ *(__be16 *)(key + off) = eth_value->h_proto;
+ *(__be16 *)(mask + off) = eth_mask->h_proto;
+ *fields |= DPAA2_ETH_DIST_ETHTYPE;
+ }
+
+ if (!is_zero_ether_addr(eth_mask->h_source)) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_SA);
+ ether_addr_copy(key + off, eth_value->h_source);
+ ether_addr_copy(mask + off, eth_mask->h_source);
+ *fields |= DPAA2_ETH_DIST_ETHSRC;
+ }
+
+ if (!is_zero_ether_addr(eth_mask->h_dest)) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
+ ether_addr_copy(key + off, eth_value->h_dest);
+ ether_addr_copy(mask + off, eth_mask->h_dest);
+ *fields |= DPAA2_ETH_DIST_ETHDST;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec *uip_value,
+ struct ethtool_usrip4_spec *uip_mask,
+ void *key, void *mask, u64 *fields)
+{
+ int off;
+ u32 tmp_value, tmp_mask;
+
+ if (uip_mask->tos || uip_mask->ip_ver)
+ return -EOPNOTSUPP;
+
+ if (uip_mask->ip4src) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC);
+ *(__be32 *)(key + off) = uip_value->ip4src;
+ *(__be32 *)(mask + off) = uip_mask->ip4src;
+ *fields |= DPAA2_ETH_DIST_IPSRC;
+ }
+
+ if (uip_mask->ip4dst) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST);
+ *(__be32 *)(key + off) = uip_value->ip4dst;
+ *(__be32 *)(mask + off) = uip_mask->ip4dst;
+ *fields |= DPAA2_ETH_DIST_IPDST;
+ }
+
+ if (uip_mask->proto) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO);
+ *(u8 *)(key + off) = uip_value->proto;
+ *(u8 *)(mask + off) = uip_mask->proto;
+ *fields |= DPAA2_ETH_DIST_IPPROTO;
+ }
+
+ if (uip_mask->l4_4_bytes) {
+ tmp_value = be32_to_cpu(uip_value->l4_4_bytes);
+ tmp_mask = be32_to_cpu(uip_mask->l4_4_bytes);
+
+ off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
+ *(__be16 *)(key + off) = htons(tmp_value >> 16);
+ *(__be16 *)(mask + off) = htons(tmp_mask >> 16);
+ *fields |= DPAA2_ETH_DIST_L4SRC;
+
+ off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
+ *(__be16 *)(key + off) = htons(tmp_value & 0xFFFF);
+ *(__be16 *)(mask + off) = htons(tmp_mask & 0xFFFF);
+ *fields |= DPAA2_ETH_DIST_L4DST;
+ }
+
+ /* Only apply the rule for IPv4 frames */
+ off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
+ *(__be16 *)(key + off) = htons(ETH_P_IP);
+ *(__be16 *)(mask + off) = htons(0xFFFF);
+ *fields |= DPAA2_ETH_DIST_ETHTYPE;
+
+ return 0;
+}
+
+static int dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec *l4_value,
+ struct ethtool_tcpip4_spec *l4_mask,
+ void *key, void *mask, u8 l4_proto, u64 *fields)
+{
+ int off;
+
+ if (l4_mask->tos)
+ return -EOPNOTSUPP;
+
+ if (l4_mask->ip4src) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC);
+ *(__be32 *)(key + off) = l4_value->ip4src;
+ *(__be32 *)(mask + off) = l4_mask->ip4src;
+ *fields |= DPAA2_ETH_DIST_IPSRC;
+ }
+
+ if (l4_mask->ip4dst) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST);
+ *(__be32 *)(key + off) = l4_value->ip4dst;
+ *(__be32 *)(mask + off) = l4_mask->ip4dst;
+ *fields |= DPAA2_ETH_DIST_IPDST;
+ }
+
+ if (l4_mask->psrc) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
+ *(__be16 *)(key + off) = l4_value->psrc;
+ *(__be16 *)(mask + off) = l4_mask->psrc;
+ *fields |= DPAA2_ETH_DIST_L4SRC;
+ }
+
+ if (l4_mask->pdst) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
+ *(__be16 *)(key + off) = l4_value->pdst;
+ *(__be16 *)(mask + off) = l4_mask->pdst;
+ *fields |= DPAA2_ETH_DIST_L4DST;
+ }
+
+ /* Only apply the rule for IPv4 frames with the specified L4 proto */
+ off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE);
+ *(__be16 *)(key + off) = htons(ETH_P_IP);
+ *(__be16 *)(mask + off) = htons(0xFFFF);
+ *fields |= DPAA2_ETH_DIST_ETHTYPE;
+
+ off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO);
+ *(u8 *)(key + off) = l4_proto;
+ *(u8 *)(mask + off) = 0xFF;
+ *fields |= DPAA2_ETH_DIST_IPPROTO;
+
+ return 0;
+}
+
+static int dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext *ext_value,
+ struct ethtool_flow_ext *ext_mask,
+ void *key, void *mask, u64 *fields)
+{
+ int off;
+
+ if (ext_mask->vlan_etype)
+ return -EOPNOTSUPP;
+
+ if (ext_mask->vlan_tci) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_VLAN, NH_FLD_VLAN_TCI);
+ *(__be16 *)(key + off) = ext_value->vlan_tci;
+ *(__be16 *)(mask + off) = ext_mask->vlan_tci;
+ *fields |= DPAA2_ETH_DIST_VLAN;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext *ext_value,
+ struct ethtool_flow_ext *ext_mask,
+ void *key, void *mask, u64 *fields)
+{
+ int off;
+
+ if (!is_zero_ether_addr(ext_mask->h_dest)) {
+ off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
+ ether_addr_copy(key + off, ext_value->h_dest);
+ ether_addr_copy(mask + off, ext_mask->h_dest);
+ *fields |= DPAA2_ETH_DIST_ETHDST;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec *fs, void *key,
+ void *mask, u64 *fields)
+{
+ int err;
+
+ switch (fs->flow_type & 0xFF) {
+ case ETHER_FLOW:
+ err = dpaa2_eth_prep_eth_rule(&fs->h_u.ether_spec, &fs->m_u.ether_spec,
+ key, mask, fields);
+ break;
+ case IP_USER_FLOW:
+ err = dpaa2_eth_prep_uip_rule(&fs->h_u.usr_ip4_spec,
+ &fs->m_u.usr_ip4_spec, key, mask, fields);
+ break;
+ case TCP_V4_FLOW:
+ err = dpaa2_eth_prep_l4_rule(&fs->h_u.tcp_ip4_spec, &fs->m_u.tcp_ip4_spec,
+ key, mask, IPPROTO_TCP, fields);
+ break;
+ case UDP_V4_FLOW:
+ err = dpaa2_eth_prep_l4_rule(&fs->h_u.udp_ip4_spec, &fs->m_u.udp_ip4_spec,
+ key, mask, IPPROTO_UDP, fields);
+ break;
+ case SCTP_V4_FLOW:
+ err = dpaa2_eth_prep_l4_rule(&fs->h_u.sctp_ip4_spec,
+ &fs->m_u.sctp_ip4_spec, key, mask,
+ IPPROTO_SCTP, fields);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (err)
+ return err;
+
+ if (fs->flow_type & FLOW_EXT) {
+ err = dpaa2_eth_prep_ext_rule(&fs->h_ext, &fs->m_ext, key, mask, fields);
+ if (err)
+ return err;
+ }
+
+ if (fs->flow_type & FLOW_MAC_EXT) {
+ err = dpaa2_eth_prep_mac_ext_rule(&fs->h_ext, &fs->m_ext, key,
+ mask, fields);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_do_cls_rule(struct net_device *net_dev,
+ struct ethtool_rx_flow_spec *fs,
+ bool add)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct device *dev = net_dev->dev.parent;
+ struct dpni_rule_cfg rule_cfg = { 0 };
+ struct dpni_fs_action_cfg fs_act = { 0 };
+ dma_addr_t key_iova;
+ u64 fields = 0;
+ void *key_buf;
+ int i, err;
+
+ if (fs->ring_cookie != RX_CLS_FLOW_DISC &&
+ fs->ring_cookie >= dpaa2_eth_queue_count(priv))
+ return -EINVAL;
+
+ rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL);
+
+ /* allocate twice the key size, for the actual key and for mask */
+ key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL);
+ if (!key_buf)
+ return -ENOMEM;
+
+ /* Fill the key and mask memory areas */
+ err = dpaa2_eth_prep_cls_rule(fs, key_buf, key_buf + rule_cfg.key_size, &fields);
+ if (err)
+ goto free_mem;
+
+ if (!dpaa2_eth_fs_mask_enabled(priv)) {
+ /* Masking allows us to configure a maximal key during init and
+ * use it for all flow steering rules. Without it, we include
+ * in the key only the fields actually used, so we need to
+ * extract the others from the final key buffer.
+ *
+ * Program the FS key if needed, or return error if previously
+ * set key can't be used for the current rule. User needs to
+ * delete existing rules in this case to allow for the new one.
+ */
+ if (!priv->rx_cls_fields) {
+ err = dpaa2_eth_set_cls(net_dev, fields);
+ if (err)
+ goto free_mem;
+
+ priv->rx_cls_fields = fields;
+ } else if (priv->rx_cls_fields != fields) {
+ netdev_err(net_dev, "No support for multiple FS keys, need to delete existing rules\n");
+ err = -EOPNOTSUPP;
+ goto free_mem;
+ }
+
+ dpaa2_eth_cls_trim_rule(key_buf, fields);
+ rule_cfg.key_size = dpaa2_eth_cls_key_size(fields);
+ }
+
+ key_iova = dma_map_single(dev, key_buf, rule_cfg.key_size * 2,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(dev, key_iova)) {
+ err = -ENOMEM;
+ goto free_mem;
+ }
+
+ rule_cfg.key_iova = key_iova;
+ if (dpaa2_eth_fs_mask_enabled(priv))
+ rule_cfg.mask_iova = key_iova + rule_cfg.key_size;
+
+ if (add) {
+ if (fs->ring_cookie == RX_CLS_FLOW_DISC)
+ fs_act.options |= DPNI_FS_OPT_DISCARD;
+ else
+ fs_act.flow_id = fs->ring_cookie;
+ }
+ for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
+ if (add)
+ err = dpni_add_fs_entry(priv->mc_io, 0, priv->mc_token,
+ i, fs->location, &rule_cfg,
+ &fs_act);
+ else
+ err = dpni_remove_fs_entry(priv->mc_io, 0,
+ priv->mc_token, i,
+ &rule_cfg);
+ if (err || priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
+ break;
+ }
+
+ dma_unmap_single(dev, key_iova, rule_cfg.key_size * 2, DMA_TO_DEVICE);
+
+free_mem:
+ kfree(key_buf);
+
+ return err;
+}
+
+static int dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv *priv)
+{
+ int i, rules = 0;
+
+ for (i = 0; i < dpaa2_eth_fs_count(priv); i++)
+ if (priv->cls_rules[i].in_use)
+ rules++;
+
+ return rules;
+}
+
+static int dpaa2_eth_update_cls_rule(struct net_device *net_dev,
+ struct ethtool_rx_flow_spec *new_fs,
+ unsigned int location)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ struct dpaa2_eth_cls_rule *rule;
+ int err = -EINVAL;
+
+ if (!priv->rx_cls_enabled)
+ return -EOPNOTSUPP;
+
+ if (location >= dpaa2_eth_fs_count(priv))
+ return -EINVAL;
+
+ rule = &priv->cls_rules[location];
+
+ /* If a rule is present at the specified location, delete it. */
+ if (rule->in_use) {
+ err = dpaa2_eth_do_cls_rule(net_dev, &rule->fs, false);
+ if (err)
+ return err;
+
+ rule->in_use = 0;
+
+ if (!dpaa2_eth_fs_mask_enabled(priv) &&
+ !dpaa2_eth_num_cls_rules(priv))
+ priv->rx_cls_fields = 0;
+ }
+
+ /* If no new entry to add, return here */
+ if (!new_fs)
+ return err;
+
+ err = dpaa2_eth_do_cls_rule(net_dev, new_fs, true);
+ if (err)
+ return err;
+
+ rule->in_use = 1;
+ rule->fs = *new_fs;
+
+ return 0;
+}
+
+static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int max_rules = dpaa2_eth_fs_count(priv);
+ int i, j = 0;
+
+ switch (rxnfc->cmd) {
+ case ETHTOOL_GRXFH:
+ /* we purposely ignore cmd->flow_type for now, because the
+ * classifier only supports a single set of fields for all
+ * protocols
+ */
+ rxnfc->data = priv->rx_hash_fields;
+ break;
+ case ETHTOOL_GRXRINGS:
+ rxnfc->data = dpaa2_eth_queue_count(priv);
+ break;
+ case ETHTOOL_GRXCLSRLCNT:
+ rxnfc->rule_cnt = 0;
+ rxnfc->rule_cnt = dpaa2_eth_num_cls_rules(priv);
+ rxnfc->data = max_rules;
+ break;
+ case ETHTOOL_GRXCLSRULE:
+ if (rxnfc->fs.location >= max_rules)
+ return -EINVAL;
+ rxnfc->fs.location = array_index_nospec(rxnfc->fs.location,
+ max_rules);
+ if (!priv->cls_rules[rxnfc->fs.location].in_use)
+ return -EINVAL;
+ rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
+ break;
+ case ETHTOOL_GRXCLSRLALL:
+ for (i = 0; i < max_rules; i++) {
+ if (!priv->cls_rules[i].in_use)
+ continue;
+ if (j == rxnfc->rule_cnt)
+ return -EMSGSIZE;
+ rule_locs[j++] = i;
+ }
+ rxnfc->rule_cnt = j;
+ rxnfc->data = max_rules;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int dpaa2_eth_set_rxnfc(struct net_device *net_dev,
+ struct ethtool_rxnfc *rxnfc)
+{
+ int err = 0;
+
+ switch (rxnfc->cmd) {
+ case ETHTOOL_SRXFH:
+ if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data)
+ return -EOPNOTSUPP;
+ err = dpaa2_eth_set_hash(net_dev, rxnfc->data);
+ break;
+ case ETHTOOL_SRXCLSRLINS:
+ err = dpaa2_eth_update_cls_rule(net_dev, &rxnfc->fs, rxnfc->fs.location);
+ break;
+ case ETHTOOL_SRXCLSRLDEL:
+ err = dpaa2_eth_update_cls_rule(net_dev, NULL, rxnfc->fs.location);
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ }
+
+ return err;
+}
+
+int dpaa2_phc_index = -1;
+EXPORT_SYMBOL(dpaa2_phc_index);
+
+static int dpaa2_eth_get_ts_info(struct net_device *dev,
+ struct ethtool_ts_info *info)
+{
+ if (!dpaa2_ptp)
+ return ethtool_op_get_ts_info(dev, info);
+
+ info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
+ SOF_TIMESTAMPING_RX_HARDWARE |
+ SOF_TIMESTAMPING_RAW_HARDWARE;
+
+ info->phc_index = dpaa2_phc_index;
+
+ info->tx_types = (1 << HWTSTAMP_TX_OFF) |
+ (1 << HWTSTAMP_TX_ON) |
+ (1 << HWTSTAMP_TX_ONESTEP_SYNC);
+
+ info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
+ (1 << HWTSTAMP_FILTER_ALL);
+ return 0;
+}
+
+static int dpaa2_eth_get_tunable(struct net_device *net_dev,
+ const struct ethtool_tunable *tuna,
+ void *data)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err = 0;
+
+ switch (tuna->id) {
+ case ETHTOOL_RX_COPYBREAK:
+ *(u32 *)data = priv->rx_copybreak;
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int dpaa2_eth_set_tunable(struct net_device *net_dev,
+ const struct ethtool_tunable *tuna,
+ const void *data)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ int err = 0;
+
+ switch (tuna->id) {
+ case ETHTOOL_RX_COPYBREAK:
+ priv->rx_copybreak = *(u32 *)data;
+ break;
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int dpaa2_eth_get_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ic,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct dpaa2_io *dpio = priv->channel[0]->dpio;
+
+ dpaa2_io_get_irq_coalescing(dpio, &ic->rx_coalesce_usecs);
+ ic->use_adaptive_rx_coalesce = dpaa2_io_get_adaptive_coalescing(dpio);
+
+ return 0;
+}
+
+static int dpaa2_eth_set_coalesce(struct net_device *dev,
+ struct ethtool_coalesce *ic,
+ struct kernel_ethtool_coalesce *kernel_coal,
+ struct netlink_ext_ack *extack)
+{
+ struct dpaa2_eth_priv *priv = netdev_priv(dev);
+ struct dpaa2_io *dpio;
+ int prev_adaptive;
+ u32 prev_rx_usecs;
+ int i, j, err;
+
+ /* Keep track of the previous value, just in case we fail */
+ dpio = priv->channel[0]->dpio;
+ dpaa2_io_get_irq_coalescing(dpio, &prev_rx_usecs);
+ prev_adaptive = dpaa2_io_get_adaptive_coalescing(dpio);
+
+ /* Setup new value for rx coalescing */
+ for (i = 0; i < priv->num_channels; i++) {
+ dpio = priv->channel[i]->dpio;
+
+ dpaa2_io_set_adaptive_coalescing(dpio,
+ ic->use_adaptive_rx_coalesce);
+ err = dpaa2_io_set_irq_coalescing(dpio, ic->rx_coalesce_usecs);
+ if (err)
+ goto restore_rx_usecs;
+ }
+
+ return 0;
+
+restore_rx_usecs:
+ for (j = 0; j < i; j++) {
+ dpio = priv->channel[j]->dpio;
+
+ dpaa2_io_set_irq_coalescing(dpio, prev_rx_usecs);
+ dpaa2_io_set_adaptive_coalescing(dpio, prev_adaptive);
+ }
+
+ return err;
+}
+
+const struct ethtool_ops dpaa2_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
+ ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
+ .get_drvinfo = dpaa2_eth_get_drvinfo,
+ .nway_reset = dpaa2_eth_nway_reset,
+ .get_link = ethtool_op_get_link,
+ .get_link_ksettings = dpaa2_eth_get_link_ksettings,
+ .set_link_ksettings = dpaa2_eth_set_link_ksettings,
+ .get_pauseparam = dpaa2_eth_get_pauseparam,
+ .set_pauseparam = dpaa2_eth_set_pauseparam,
+ .get_sset_count = dpaa2_eth_get_sset_count,
+ .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
+ .get_strings = dpaa2_eth_get_strings,
+ .get_rxnfc = dpaa2_eth_get_rxnfc,
+ .set_rxnfc = dpaa2_eth_set_rxnfc,
+ .get_ts_info = dpaa2_eth_get_ts_info,
+ .get_tunable = dpaa2_eth_get_tunable,
+ .set_tunable = dpaa2_eth_set_tunable,
+ .get_coalesce = dpaa2_eth_get_coalesce,
+ .set_coalesce = dpaa2_eth_set_coalesce,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 00:55:57 +0000