From: Sunil Kumar Kori <sk...@marvell.com>
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 <sk...@marvell.com>
---
doc/guides/nics/features/cnxk.ini | 1 +
doc/guides/nics/features/cnxk_vec.ini | 1 +
drivers/net/cnxk/cnxk_ethdev.c | 2 ++
drivers/net/cnxk/cnxk_ethdev.h | 4 +++
drivers/net/cnxk/cnxk_ethdev_ops.c | 63 +++++++++++++++++++++++++++++++++++
5 files changed, 71 insertions(+)
diff --git a/doc/guides/nics/features/cnxk.ini
b/doc/guides/nics/features/cnxk.ini
index 9945af9..c686ceb 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 b4b1169..4c3f78e 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 f49c9e6..1edea35 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -1258,6 +1258,7 @@ 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
@@ -1322,6 +1323,7 @@ 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 cd08e3a..c07e988 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 28b49ad..3be678a 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 +848,63 @@ 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);
+ const struct rte_ether_addr null_mac_addr = {0};
+ struct rte_eth_dev_data *data = eth_dev->data;
+ struct roc_nix *nix = &dev->nix;
+ int rc, index;
+ uint32_t i;
+
+ /* 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;
+}
--
2.8.4
