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Message-ID: <4AF19E83.8030200@mellanox.co.il>
Date: Wed, 04 Nov 2009 17:32:19 +0200
From: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
To: rdreier@...co.com
CC: linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
liranl@...lanox.co.il, tziporet@...lanox.co.il,
yevgenyp@...lanox.co.il
Subject: [PATCH 23/25] mlx4: Configuring multicast filter
The Multicast filter configuration is done by the master,
that manages the filter which is common for all the functions.
The master holds a list of multicast addresses for all the
slaves, and adds them to the filter.
In case some slave wishes to flush the filter, only his addresses
are removed.
Signed-off-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il>
---
drivers/net/mlx4/cmd.c | 6 ++-
drivers/net/mlx4/en_port.c | 7 ---
drivers/net/mlx4/mlx4.h | 10 ++++
drivers/net/mlx4/mlx4_en.h | 1 -
drivers/net/mlx4/port.c | 125 +++++++++++++++++++++++++++++++++++++++++++
include/linux/mlx4/device.h | 1 +
6 files changed, 140 insertions(+), 10 deletions(-)
diff --git a/drivers/net/mlx4/cmd.c b/drivers/net/mlx4/cmd.c
index 183ba8d..3b0b22a 100644
--- a/drivers/net/mlx4/cmd.c
+++ b/drivers/net/mlx4/cmd.c
@@ -599,7 +599,7 @@ static struct mlx4_cmd_info {
/* Ethernet specific commands */
{MLX4_CMD_SET_VLAN_FLTR, 1, 0, 0, NULL, NULL}, /* need wrapper */
- {MLX4_CMD_SET_MCAST_FLTR, 0, 0, 0, NULL, NULL}, /* need wrapper */
+ {MLX4_CMD_SET_MCAST_FLTR, 0, 0, 0, NULL, mlx4_SET_MCAST_FLTR_wrapper},
{MLX4_CMD_DUMP_ETH_STATS, 0, 1, 0, NULL, NULL}, /* need wrapper */
};
@@ -822,7 +822,7 @@ static void mlx4_master_poll_comm(struct work_struct *work)
int mlx4_multi_func_init(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
- int i;
+ int i, port;
priv->mfunc.vhcr = dma_alloc_coherent(&(dev->pdev->dev), PAGE_SIZE,
&priv->mfunc.vhcr_dma,
@@ -855,6 +855,8 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
for (i = 0; i < dev->num_slaves; ++i) {
priv->mfunc.master.slave_state[i].last_cmd = MLX4_COMM_CMD_RESET;
+ for (port = 1; port <= MLX4_MAX_PORTS; port++)
+ INIT_LIST_HEAD(&priv->mfunc.master.slave_state[i].mcast_filters[port]);
spin_lock_init(&priv->mfunc.master.slave_state[i].lock);
}
diff --git a/drivers/net/mlx4/en_port.c b/drivers/net/mlx4/en_port.c
index c7aa86e..6dc07c9 100644
--- a/drivers/net/mlx4/en_port.c
+++ b/drivers/net/mlx4/en_port.c
@@ -41,13 +41,6 @@
#include "mlx4_en.h"
-int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
- u64 mac, u64 clear, u8 mode)
-{
- return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
- MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B);
-}
-
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, u8 port, struct vlan_group *grp)
{
struct mlx4_cmd_mailbox *mailbox;
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
index 1213de6..7040671 100644
--- a/drivers/net/mlx4/mlx4.h
+++ b/drivers/net/mlx4/mlx4.h
@@ -216,6 +216,11 @@ struct mlx4_slave_eqe {
u32 param;
};
+struct mlx4_mcast_entry {
+ struct list_head list;
+ u64 addr;
+};
+
struct mlx4_slave_state {
u8 comm_toggle;
u8 last_cmd;
@@ -224,6 +229,7 @@ struct mlx4_slave_state {
u16 mtu[MLX4_MAX_PORTS + 1];
__be32 ib_cap_mask[MLX4_MAX_PORTS + 1];
struct mlx4_slave_eqe eq[MLX4_MFUNC_MAX_EQES];
+ struct list_head mcast_filters[MLX4_MAX_PORTS + 1];
u16 eq_pi;
u16 eq_ci;
int sqp_start;
@@ -234,6 +240,7 @@ struct mlx4_mfunc_master_ctx {
struct mlx4_slave_state *slave_state;
int init_port_ref[MLX4_MAX_PORTS + 1];
u16 max_mtu[MLX4_MAX_PORTS + 1];
+ int disable_mcast_ref[MLX4_MAX_PORTS + 1];
};
struct mlx4_vhcr {
@@ -550,5 +557,8 @@ int mlx4_GET_SLAVE_SQP_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr
int mlx4_MCAST_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox);
+int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
+ struct mlx4_cmd_mailbox *inbox,
+ struct mlx4_cmd_mailbox *outbox);
#endif /* MLX4_H */
diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h
index 6e0c9ed..b4731d5 100644
--- a/drivers/net/mlx4/mlx4_en.h
+++ b/drivers/net/mlx4/mlx4_en.h
@@ -556,7 +556,6 @@ void mlx4_en_release_rss_steer(struct mlx4_en_priv *priv);
int mlx4_en_free_tx_buf(struct net_device *dev, struct mlx4_en_tx_ring *ring);
void mlx4_en_rx_irq(struct mlx4_cq *mcq);
-int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, u8 port, struct vlan_group *grp);
int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);
diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c
index 7317d0f..1bc527c 100644
--- a/drivers/net/mlx4/port.c
+++ b/drivers/net/mlx4/port.c
@@ -491,3 +491,128 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
+
+int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
+ struct mlx4_cmd_mailbox *inbox,
+ struct mlx4_cmd_mailbox *outbox)
+{
+ struct mlx4_priv *priv = mlx4_priv(dev);
+ int port = vhcr->in_modifier;
+ int err = 0;
+ u64 addr = vhcr->in_param & 0xffffffffffffULL;
+ u64 clear = vhcr->in_param >> 63;
+ struct mlx4_mcast_entry *entry, *tmp;
+ struct mlx4_slave_state *s_state = &priv->mfunc.master.slave_state[slave];
+ int i;
+
+ switch (vhcr->op_modifier) {
+ case MLX4_MCAST_DISABLE:
+ /* The multicast filter is disabled only once,
+ * If some other function already done it, operation
+ * is ignored */
+ if (!(priv->mfunc.master.disable_mcast_ref[port]++))
+ err = mlx4_cmd(dev, 0, port, MLX4_MCAST_DISABLE,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ break;
+ case MLX4_MCAST_ENABLE:
+ /* We enable the muticast filter only if all functions
+ * have the filter enabled */
+ if (!(--priv->mfunc.master.disable_mcast_ref[port]))
+ err = mlx4_cmd(dev, 0, port, MLX4_MCAST_ENABLE,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ break;
+ case MLX4_MCAST_CONFIG:
+ if (clear) {
+ /* Disable the muticast filter while updating it */
+ if (!priv->mfunc.master.disable_mcast_ref[port]) {
+ err = mlx4_cmd(dev, 0, port, MLX4_MCAST_DISABLE,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ if (err) {
+ mlx4_warn(dev, "Failed to disable multicast "
+ "filter\n");
+ goto out;
+ }
+ }
+ /* Clear the multicast filter */
+ err = mlx4_cmd(dev, clear << 63, port,
+ MLX4_MCAST_CONFIG,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ if (err) {
+ mlx4_warn(dev, "Failed clearing the multicast filter\n");
+ goto out;
+ }
+
+ /* Clear the multicast addresses for the given slave */
+ list_for_each_entry_safe(entry, tmp,
+ &s_state->mcast_filters[port],
+ list) {
+ list_del(&entry->list);
+ kfree(entry);
+ }
+
+ /* Assign all the multicast addresses that still exist */
+ for (i = 0; i < dev->num_slaves; i++) {
+ list_for_each_entry(entry,
+ &priv->mfunc.master.slave_state[slave].mcast_filters[port],
+ list) {
+ if (mlx4_cmd(dev, entry->addr, port,
+ MLX4_MCAST_CONFIG,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B))
+ mlx4_warn(dev, "Failed to reconfigure "
+ "multicast address: 0x%llx\n",
+ entry->addr);
+ }
+ }
+ /* Enable the filter */
+ if (!priv->mfunc.master.disable_mcast_ref[port]) {
+ err = mlx4_cmd(dev, 0, port, MLX4_MCAST_ENABLE,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ if (err) {
+ mlx4_warn(dev, "Failed to enable multicast "
+ "filter\n");
+ goto out;
+ }
+ }
+ }
+ /* Add the new address if exists */
+ if (addr) {
+ entry = kzalloc(sizeof (struct mlx4_mcast_entry),
+ GFP_KERNEL);
+ if (!entry) {
+ mlx4_warn(dev, "Failed to allocate entry for "
+ "muticast address\n");
+ err = -ENOMEM;
+ goto out;
+ }
+ INIT_LIST_HEAD(&entry->list);
+ entry->addr = addr;
+ list_add_tail(&entry->list, &s_state->mcast_filters[port]);
+ err = mlx4_cmd(dev, addr, port, MLX4_MCAST_CONFIG,
+ MLX4_CMD_SET_MCAST_FLTR,
+ MLX4_CMD_TIME_CLASS_B);
+ if (err)
+ mlx4_warn(dev, "Failed to add the new address:"
+ "0x%llx\n", addr);
+ }
+ break;
+ default:
+ mlx4_warn(dev, "SET_MCAST_FILTER called with illegal modifier\n");
+ err = -EINVAL;
+ }
+out:
+ return err;
+}
+
+int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port,
+ u64 mac, u64 clear, u8 mode)
+{
+ return mlx4_cmd(dev, (mac | (clear << 63)), port, mode,
+ MLX4_CMD_SET_MCAST_FLTR, MLX4_CMD_TIME_CLASS_B);
+}
+EXPORT_SYMBOL(mlx4_SET_MCAST_FLTR);
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 3d74198..10a5fb8 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -498,6 +498,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int block_mcast_loopback, enum mlx4_protocol prot);
int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
enum mlx4_protocol prot);
+int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mode);
int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn);
void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn);
--
1.6.1.3
--
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