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path: root/drivers/net/mlx4/mcg.c
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Diffstat (limited to 'drivers/net/mlx4/mcg.c')
-rw-r--r--drivers/net/mlx4/mcg.c113
1 files changed, 78 insertions, 35 deletions
diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
index 79cf42db2ea9..b103ad23bd84 100644
--- a/drivers/net/mlx4/mcg.c
+++ b/drivers/net/mlx4/mcg.c
@@ -32,6 +32,7 @@
*/
#include <linux/string.h>
+#include <linux/etherdevice.h>
#include <linux/mlx4/cmd.h>
@@ -50,28 +51,28 @@ struct mlx4_mgm {
static const u8 zero_gid[16]; /* automatically initialized to 0 */
-static int mlx4_READ_MCG(struct mlx4_dev *dev, int index,
- struct mlx4_cmd_mailbox *mailbox)
+static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
+ struct mlx4_cmd_mailbox *mailbox)
{
return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
MLX4_CMD_TIME_CLASS_A);
}
-static int mlx4_WRITE_MCG(struct mlx4_dev *dev, int index,
- struct mlx4_cmd_mailbox *mailbox)
+static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
+ struct mlx4_cmd_mailbox *mailbox)
{
return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
MLX4_CMD_TIME_CLASS_A);
}
-static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
- u16 *hash)
+static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+ u16 *hash, u8 op_mod)
{
u64 imm;
int err;
- err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, 0, MLX4_CMD_MGID_HASH,
- MLX4_CMD_TIME_CLASS_A);
+ err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
+ MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A);
if (!err)
*hash = imm;
@@ -94,15 +95,17 @@ static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox
* If no AMGM exists for given gid, *index = -1, *prev = index of last
* entry in hash chain and *mgm holds end of hash chain.
*/
-static int find_mgm(struct mlx4_dev *dev,
- u8 *gid, enum mlx4_protocol protocol,
- struct mlx4_cmd_mailbox *mgm_mailbox,
- u16 *hash, int *prev, int *index)
+static int find_entry(struct mlx4_dev *dev, u8 port,
+ u8 *gid, enum mlx4_protocol prot,
+ enum mlx4_steer_type steer,
+ struct mlx4_cmd_mailbox *mgm_mailbox,
+ u16 *hash, int *prev, int *index)
{
struct mlx4_cmd_mailbox *mailbox;
struct mlx4_mgm *mgm = mgm_mailbox->buf;
u8 *mgid;
int err;
+ u8 op_mod = (prot == MLX4_PROT_ETH) ? !!(dev->caps.vep_mc_steering) : 0;
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
@@ -111,7 +114,7 @@ static int find_mgm(struct mlx4_dev *dev,
memcpy(mgid, gid, 16);
- err = mlx4_MGID_HASH(dev, mailbox, hash);
+ err = mlx4_GID_HASH(dev, mailbox, hash, op_mod);
mlx4_free_cmd_mailbox(dev, mailbox);
if (err)
return err;
@@ -123,11 +126,11 @@ static int find_mgm(struct mlx4_dev *dev,
*prev = -1;
do {
- err = mlx4_READ_MCG(dev, *index, mgm_mailbox);
+ err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
if (err)
return err;
- if (!memcmp(mgm->gid, zero_gid, 16)) {
+ if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
if (*index != *hash) {
mlx4_err(dev, "Found zero MGID in AMGM.\n");
err = -EINVAL;
@@ -136,7 +139,7 @@ static int find_mgm(struct mlx4_dev *dev,
}
if (!memcmp(mgm->gid, gid, 16) &&
- be32_to_cpu(mgm->members_count) >> 30 == protocol)
+ be32_to_cpu(mgm->members_count) >> 30 == prot)
return err;
*prev = *index;
@@ -147,8 +150,9 @@ static int find_mgm(struct mlx4_dev *dev,
return err;
}
-int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- int block_mcast_loopback, enum mlx4_protocol protocol)
+int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ int block_mcast_loopback, enum mlx4_protocol prot,
+ enum mlx4_steer_type steer)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_cmd_mailbox *mailbox;
@@ -159,6 +163,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int link = 0;
int i;
int err;
+ u8 port = gid[5];
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
@@ -166,13 +171,13 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
mgm = mailbox->buf;
mutex_lock(&priv->mcg_table.mutex);
-
- err = find_mgm(dev, gid, protocol, mailbox, &hash, &prev, &index);
+ err = find_entry(dev, port, gid, prot, steer,
+ mailbox, &hash, &prev, &index);
if (err)
goto out;
if (index != -1) {
- if (!memcmp(mgm->gid, zero_gid, 16))
+ if (!(be32_to_cpu(mgm->members_count) & 0xffffff))
memcpy(mgm->gid, gid, 16);
} else {
link = 1;
@@ -209,22 +214,22 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
else
mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
- mgm->members_count = cpu_to_be32(members_count | (u32) protocol << 30);
+ mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
- err = mlx4_WRITE_MCG(dev, index, mailbox);
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
if (err)
goto out;
if (!link)
goto out;
- err = mlx4_READ_MCG(dev, prev, mailbox);
+ err = mlx4_READ_ENTRY(dev, prev, mailbox);
if (err)
goto out;
mgm->next_gid_index = cpu_to_be32(index << 6);
- err = mlx4_WRITE_MCG(dev, prev, mailbox);
+ err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
if (err)
goto out;
@@ -242,10 +247,9 @@ out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
-EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
-int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
- enum mlx4_protocol protocol)
+int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ enum mlx4_protocol prot, enum mlx4_steer_type steer)
{
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_cmd_mailbox *mailbox;
@@ -255,6 +259,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
int prev, index;
int i, loc;
int err;
+ u8 port = gid[5];
mailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(mailbox))
@@ -263,7 +268,8 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
mutex_lock(&priv->mcg_table.mutex);
- err = find_mgm(dev, gid, protocol, mailbox, &hash, &prev, &index);
+ err = find_entry(dev, port, gid, prot, steer,
+ mailbox, &hash, &prev, &index);
if (err)
goto out;
@@ -285,12 +291,12 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
}
- mgm->members_count = cpu_to_be32(--members_count | (u32) protocol << 30);
+ mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
mgm->qp[loc] = mgm->qp[i - 1];
mgm->qp[i - 1] = 0;
if (i != 1) {
- err = mlx4_WRITE_MCG(dev, index, mailbox);
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
goto out;
}
@@ -298,13 +304,13 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
/* Remove entry from MGM */
int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
if (amgm_index) {
- err = mlx4_READ_MCG(dev, amgm_index, mailbox);
+ err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
if (err)
goto out;
} else
memset(mgm->gid, 0, 16);
- err = mlx4_WRITE_MCG(dev, index, mailbox);
+ err = mlx4_WRITE_ENTRY(dev, index, mailbox);
if (err)
goto out;
@@ -319,13 +325,13 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
} else {
/* Remove entry from AMGM */
int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
- err = mlx4_READ_MCG(dev, prev, mailbox);
+ err = mlx4_READ_ENTRY(dev, prev, mailbox);
if (err)
goto out;
mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
- err = mlx4_WRITE_MCG(dev, prev, mailbox);
+ err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
if (err)
goto out;
@@ -343,6 +349,43 @@ out:
mlx4_free_cmd_mailbox(dev, mailbox);
return err;
}
+
+
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ int block_mcast_loopback, enum mlx4_protocol prot)
+{
+ enum mlx4_steer_type steer;
+
+ steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
+
+ if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering)
+ return 0;
+
+ if (prot == MLX4_PROT_ETH)
+ gid[7] |= (steer << 1);
+
+ return mlx4_qp_attach_common(dev, qp, gid,
+ block_mcast_loopback, prot,
+ steer);
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
+
+int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
+ enum mlx4_protocol prot)
+{
+ enum mlx4_steer_type steer;
+
+ steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
+
+ if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering)
+ return 0;
+
+ if (prot == MLX4_PROT_ETH) {
+ gid[7] |= (steer << 1);
+ }
+
+ return mlx4_qp_detach_common(dev, qp, gid, prot, steer);
+}
EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
int mlx4_init_mcg_table(struct mlx4_dev *dev)
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-20 05:36:25 +0200