From: Sunil Kumar Kori Date: Wed, 23 Jun 2021 04:47:01 +0000 (+0530) Subject: net/cnxk: support multicast filter X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=21cc840198d803db84ca0730c2eb944139e41459;p=dpdk.git net/cnxk: support multicast filter Patch adds multicast filter support for cn9k and cn10k platforms. CGX DMAC filter table(32 entries) is divided among all LMACs connected to it i.e. if CGX has 4 LMACs then each LMAC can have up to 8 filters. If CGX has 1 LMAC then it can have up to 32 filters. Above mentioned filter table is used to install unicast and multicast DMAC address filters. Unicast filters are installed via rte_eth_dev_mac_addr_add API while multicast filters are installed via rte_eth_dev_set_mc_addr_list API. So in total, supported MAC filters are equal to DMAC filters plus mcast filters. Signed-off-by: Sunil Kumar Kori --- diff --git a/doc/guides/nics/features/cnxk.ini b/doc/guides/nics/features/cnxk.ini index e4f4609506..85e26f3779 100644 --- a/doc/guides/nics/features/cnxk.ini +++ b/doc/guides/nics/features/cnxk.ini @@ -22,6 +22,7 @@ TSO = Y Promiscuous mode = Y Allmulticast mode = Y Unicast MAC filter = Y +Multicast MAC filter = Y RSS hash = Y RSS key update = Y RSS reta update = Y diff --git a/doc/guides/nics/features/cnxk_vec.ini b/doc/guides/nics/features/cnxk_vec.ini index 3234c30583..bc1096ab97 100644 --- a/doc/guides/nics/features/cnxk_vec.ini +++ b/doc/guides/nics/features/cnxk_vec.ini @@ -21,6 +21,7 @@ MTU update = Y Promiscuous mode = Y Allmulticast mode = Y Unicast MAC filter = Y +Multicast MAC filter = Y RSS hash = Y RSS key update = Y RSS reta update = Y diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c index abd9bf1ee4..b7872cc2b0 100644 --- a/drivers/net/cnxk/cnxk_ethdev.c +++ b/drivers/net/cnxk/cnxk_ethdev.c @@ -1270,6 +1270,7 @@ struct eth_dev_ops cnxk_eth_dev_ops = { .reta_query = cnxk_nix_reta_query, .rss_hash_update = cnxk_nix_rss_hash_update, .rss_hash_conf_get = cnxk_nix_rss_hash_conf_get, + .set_mc_addr_list = cnxk_nix_mc_addr_list_configure, }; static int @@ -1334,6 +1335,7 @@ cnxk_eth_dev_init(struct rte_eth_dev *eth_dev) } dev->max_mac_entries = max_entries; + dev->dmac_filter_count = 1; /* Get mac address */ rc = roc_nix_npc_mac_addr_get(nix, dev->mac_addr); diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h index cd08e3a869..c07e988b4c 100644 --- a/drivers/net/cnxk/cnxk_ethdev.h +++ b/drivers/net/cnxk/cnxk_ethdev.h @@ -162,6 +162,7 @@ struct cnxk_eth_dev { uint8_t configured; /* Max macfilter entries */ + uint8_t dmac_filter_count; uint8_t max_mac_entries; bool dmac_filter_enable; @@ -265,6 +266,9 @@ int cnxk_nix_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev); int cnxk_nix_remove(struct rte_pci_device *pci_dev); int cnxk_nix_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu); +int cnxk_nix_mc_addr_list_configure(struct rte_eth_dev *eth_dev, + struct rte_ether_addr *mc_addr_set, + uint32_t nb_mc_addr); int cnxk_nix_mac_addr_add(struct rte_eth_dev *eth_dev, struct rte_ether_addr *addr, uint32_t index, uint32_t pool); diff --git a/drivers/net/cnxk/cnxk_ethdev_ops.c b/drivers/net/cnxk/cnxk_ethdev_ops.c index d257763b10..b6cc5286c6 100644 --- a/drivers/net/cnxk/cnxk_ethdev_ops.c +++ b/drivers/net/cnxk/cnxk_ethdev_ops.c @@ -359,6 +359,7 @@ cnxk_nix_mac_addr_add(struct rte_eth_dev *eth_dev, struct rte_ether_addr *addr, roc_nix_npc_promisc_ena_dis(nix, true); dev->dmac_filter_enable = true; eth_dev->data->promiscuous = false; + dev->dmac_filter_count++; return 0; } @@ -373,6 +374,8 @@ cnxk_nix_mac_addr_del(struct rte_eth_dev *eth_dev, uint32_t index) rc = roc_nix_mac_addr_del(nix, index); if (rc) plt_err("Failed to delete mac address, rc=%d", rc); + + dev->dmac_filter_count--; } int @@ -845,3 +848,65 @@ cnxk_nix_rss_hash_conf_get(struct rte_eth_dev *eth_dev, return 0; } + +int +cnxk_nix_mc_addr_list_configure(struct rte_eth_dev *eth_dev, + struct rte_ether_addr *mc_addr_set, + uint32_t nb_mc_addr) +{ + struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev); + struct rte_eth_dev_data *data = eth_dev->data; + struct rte_ether_addr null_mac_addr; + struct roc_nix *nix = &dev->nix; + int rc, index; + uint32_t i; + + memset(&null_mac_addr, 0, sizeof(null_mac_addr)); + + /* All configured multicast filters should be flushed first */ + for (i = 0; i < dev->max_mac_entries; i++) { + if (rte_is_multicast_ether_addr(&data->mac_addrs[i])) { + rc = roc_nix_mac_addr_del(nix, i); + if (rc) { + plt_err("Failed to flush mcast address, rc=%d", + rc); + return rc; + } + + dev->dmac_filter_count--; + /* Update address in NIC data structure */ + rte_ether_addr_copy(&null_mac_addr, + &data->mac_addrs[i]); + } + } + + if (!mc_addr_set || !nb_mc_addr) + return 0; + + /* Check for available space */ + if (nb_mc_addr > + ((uint32_t)(dev->max_mac_entries - dev->dmac_filter_count))) { + plt_err("No space is available to add multicast filters"); + return -ENOSPC; + } + + /* Multicast addresses are to be installed */ + for (i = 0; i < nb_mc_addr; i++) { + index = roc_nix_mac_addr_add(nix, mc_addr_set[i].addr_bytes); + if (index < 0) { + plt_err("Failed to add mcast mac address, rc=%d", + index); + return index; + } + + dev->dmac_filter_count++; + /* Update address in NIC data structure */ + rte_ether_addr_copy(&mc_addr_set[i], &data->mac_addrs[index]); + } + + roc_nix_npc_promisc_ena_dis(nix, true); + dev->dmac_filter_enable = true; + eth_dev->data->promiscuous = false; + + return 0; +}