+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+
+#include "otx2_ethdev.h"
+
+static int
+nix_mc_addr_list_free(struct otx2_eth_dev *dev, uint32_t entry_count)
+{
+ struct npc_mcam_free_entry_req *req;
+ struct otx2_mbox *mbox = dev->mbox;
+ struct mcast_entry *entry;
+ int rc = 0;
+
+ if (entry_count == 0)
+ goto exit;
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next) {
+ req = otx2_mbox_alloc_msg_npc_mcam_free_entry(mbox);
+ req->entry = entry->mcam_index;
+
+ rc = otx2_mbox_process_msg(mbox, NULL);
+ if (rc < 0)
+ goto exit;
+
+ TAILQ_REMOVE(&dev->mc_fltr_tbl, entry, next);
+ rte_free(entry);
+ entry_count--;
+
+ if (entry_count == 0)
+ break;
+ }
+
+ if (entry == NULL)
+ dev->mc_tbl_set = false;
+
+exit:
+ return rc;
+}
+
+static int
+nix_hw_update_mc_addr_list(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct otx2_npc_flow_info *npc = &dev->npc_flow;
+ volatile uint8_t *key_data, *key_mask;
+ struct npc_mcam_write_entry_req *req;
+ struct otx2_mbox *mbox = dev->mbox;
+ struct npc_xtract_info *x_info;
+ uint64_t mcam_data, mcam_mask;
+ struct mcast_entry *entry;
+ otx2_dxcfg_t *ld_cfg;
+ uint8_t *mac_addr;
+ uint64_t action;
+ int idx, rc = 0;
+
+ ld_cfg = &npc->prx_dxcfg;
+ /* Get ETH layer profile info for populating mcam entries */
+ x_info = &(*ld_cfg)[NPC_MCAM_RX][NPC_LID_LA][NPC_LT_LA_ETHER].xtract[0];
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next) {
+ req = otx2_mbox_alloc_msg_npc_mcam_write_entry(mbox);
+ if (req == NULL) {
+ /* The mbox memory buffer can be full.
+ * Flush it and retry
+ */
+ otx2_mbox_msg_send(mbox, 0);
+ rc = otx2_mbox_wait_for_rsp(mbox, 0);
+ if (rc < 0)
+ goto exit;
+
+ req = otx2_mbox_alloc_msg_npc_mcam_write_entry(mbox);
+ if (req == NULL) {
+ rc = -ENOMEM;
+ goto exit;
+ }
+ }
+ req->entry = entry->mcam_index;
+ req->intf = NPC_MCAM_RX;
+ req->enable_entry = 1;
+
+ /* Channel base extracted to KW0[11:0] */
+ req->entry_data.kw[0] = dev->rx_chan_base;
+ req->entry_data.kw_mask[0] = RTE_LEN2MASK(12, uint64_t);
+
+ /* Update mcam address */
+ key_data = (volatile uint8_t *)req->entry_data.kw;
+ key_mask = (volatile uint8_t *)req->entry_data.kw_mask;
+
+ mcam_data = 0ull;
+ mcam_mask = RTE_LEN2MASK(48, uint64_t);
+ mac_addr = &entry->mcast_mac.addr_bytes[0];
+ for (idx = RTE_ETHER_ADDR_LEN - 1; idx >= 0; idx--)
+ mcam_data |= ((uint64_t)*mac_addr++) << (8 * idx);
+
+ otx2_mbox_memcpy(key_data + x_info->key_off,
+ &mcam_data, x_info->len);
+ otx2_mbox_memcpy(key_mask + x_info->key_off,
+ &mcam_mask, x_info->len);
+
+ action = NIX_RX_ACTIONOP_UCAST;
+
+ if (eth_dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
+ action = NIX_RX_ACTIONOP_RSS;
+ action |= (uint64_t)(dev->rss_info.alg_idx) << 56;
+ }
+
+ action |= ((uint64_t)otx2_pfvf_func(dev->pf, dev->vf)) << 4;
+ req->entry_data.action = action;
+ }
+
+ otx2_mbox_msg_send(mbox, 0);
+ rc = otx2_mbox_wait_for_rsp(mbox, 0);
+
+exit:
+ return rc;
+}
+
+int
+otx2_nix_mc_addr_list_install(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct npc_mcam_alloc_entry_req *req;
+ struct npc_mcam_alloc_entry_rsp *rsp;
+ struct otx2_mbox *mbox = dev->mbox;
+ uint32_t entry_count = 0, idx = 0;
+ struct mcast_entry *entry;
+ int rc = 0;
+
+ if (!dev->mc_tbl_set)
+ return 0;
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next)
+ entry_count++;
+
+ req = otx2_mbox_alloc_msg_npc_mcam_alloc_entry(mbox);
+ req->priority = NPC_MCAM_ANY_PRIO;
+ req->count = entry_count;
+
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc || rsp->count < entry_count) {
+ otx2_err("Failed to allocate required mcam entries");
+ goto exit;
+ }
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next)
+ entry->mcam_index = rsp->entry_list[idx];
+
+ rc = nix_hw_update_mc_addr_list(eth_dev);
+
+exit:
+ return rc;
+}
+
+int
+otx2_nix_mc_addr_list_uninstall(struct rte_eth_dev *eth_dev)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct npc_mcam_free_entry_req *req;
+ struct otx2_mbox *mbox = dev->mbox;
+ struct mcast_entry *entry;
+ int rc = 0;
+
+ if (!dev->mc_tbl_set)
+ return 0;
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next) {
+ req = otx2_mbox_alloc_msg_npc_mcam_free_entry(mbox);
+ if (req == NULL) {
+ otx2_mbox_msg_send(mbox, 0);
+ rc = otx2_mbox_wait_for_rsp(mbox, 0);
+ if (rc < 0)
+ goto exit;
+
+ req = otx2_mbox_alloc_msg_npc_mcam_free_entry(mbox);
+ if (req == NULL) {
+ rc = -ENOMEM;
+ goto exit;
+ }
+ }
+ req->entry = entry->mcam_index;
+ }
+
+ otx2_mbox_msg_send(mbox, 0);
+ rc = otx2_mbox_wait_for_rsp(mbox, 0);
+
+exit:
+ return rc;
+}
+
+static int
+nix_setup_mc_addr_list(struct otx2_eth_dev *dev,
+ struct rte_ether_addr *mc_addr_set)
+{
+ struct npc_mcam_ena_dis_entry_req *req;
+ struct otx2_mbox *mbox = dev->mbox;
+ struct mcast_entry *entry;
+ uint32_t idx = 0;
+ int rc = 0;
+
+ /* Populate PMD's mcast list with given mcast mac addresses and
+ * disable all mcam entries pertaining to the mcast list.
+ */
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next) {
+ rte_memcpy(&entry->mcast_mac, &mc_addr_set[idx++],
+ RTE_ETHER_ADDR_LEN);
+
+ req = otx2_mbox_alloc_msg_npc_mcam_dis_entry(mbox);
+ if (req == NULL) {
+ otx2_mbox_msg_send(mbox, 0);
+ rc = otx2_mbox_wait_for_rsp(mbox, 0);
+ if (rc < 0)
+ goto exit;
+
+ req = otx2_mbox_alloc_msg_npc_mcam_dis_entry(mbox);
+ if (req == NULL) {
+ rc = -ENOMEM;
+ goto exit;
+ }
+ }
+ req->entry = entry->mcam_index;
+ }
+
+ otx2_mbox_msg_send(mbox, 0);
+ rc = otx2_mbox_wait_for_rsp(mbox, 0);
+
+exit:
+ return rc;
+}
+
+int
+otx2_nix_set_mc_addr_list(struct rte_eth_dev *eth_dev,
+ struct rte_ether_addr *mc_addr_set,
+ uint32_t nb_mc_addr)
+{
+ struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+ struct npc_mcam_alloc_entry_req *req;
+ struct npc_mcam_alloc_entry_rsp *rsp;
+ struct otx2_mbox *mbox = dev->mbox;
+ uint32_t idx, priv_count = 0;
+ struct mcast_entry *entry;
+ int rc = 0;
+
+ if (otx2_dev_is_vf(dev))
+ return -ENOTSUP;
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next)
+ priv_count++;
+
+ if (nb_mc_addr == 0 || mc_addr_set == NULL) {
+ /* Free existing list if new list is null */
+ nb_mc_addr = priv_count;
+ goto exit;
+ }
+
+ for (idx = 0; idx < nb_mc_addr; idx++) {
+ if (!rte_is_multicast_ether_addr(&mc_addr_set[idx]))
+ return -EINVAL;
+ }
+
+ /* New list is bigger than the existing list,
+ * allocate mcam entries for the extra entries.
+ */
+ if (nb_mc_addr > priv_count) {
+ req = otx2_mbox_alloc_msg_npc_mcam_alloc_entry(mbox);
+ req->priority = NPC_MCAM_ANY_PRIO;
+ req->count = nb_mc_addr - priv_count;
+
+ rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+ if (rc || (rsp->count + priv_count < nb_mc_addr)) {
+ otx2_err("Failed to allocate required entries");
+ nb_mc_addr = priv_count;
+ goto exit;
+ }
+
+ /* Append new mcam entries to the existing mc list */
+ for (idx = 0; idx < rsp->count; idx++) {
+ entry = rte_zmalloc("otx2_nix_mc_entry",
+ sizeof(struct mcast_entry), 0);
+ if (!entry) {
+ otx2_err("Failed to allocate memory");
+ nb_mc_addr = priv_count;
+ rc = -ENOMEM;
+ goto exit;
+ }
+ entry->mcam_index = rsp->entry_list[idx];
+ TAILQ_INSERT_HEAD(&dev->mc_fltr_tbl, entry, next);
+ }
+ } else {
+ /* Free the extra mcam entries if the new list is smaller
+ * than exiting list.
+ */
+ nix_mc_addr_list_free(dev, priv_count - nb_mc_addr);
+ }
+
+
+ /* Now mc_fltr_tbl has the required number of mcam entries,
+ * Traverse through it and add new multicast filter table entries.
+ */
+ rc = nix_setup_mc_addr_list(dev, mc_addr_set);
+ if (rc < 0)
+ goto exit;
+
+ rc = nix_hw_update_mc_addr_list(eth_dev);
+ if (rc < 0)
+ goto exit;
+
+ dev->mc_tbl_set = true;
+
+ return 0;
+
+exit:
+ nix_mc_addr_list_free(dev, nb_mc_addr);
+ return rc;
+}
+
+void
+otx2_nix_mc_filter_init(struct otx2_eth_dev *dev)
+{
+ if (otx2_dev_is_vf(dev))
+ return;
+
+ TAILQ_INIT(&dev->mc_fltr_tbl);
+}
+
+void
+otx2_nix_mc_filter_fini(struct otx2_eth_dev *dev)
+{
+ struct mcast_entry *entry;
+ uint32_t count = 0;
+
+ if (otx2_dev_is_vf(dev))
+ return;
+
+ TAILQ_FOREACH(entry, &dev->mc_fltr_tbl, next)
+ count++;
+
+ nix_mc_addr_list_free(dev, count);
+}
git.droids-corp.org / dpdk.git / commitdiff