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mlx4_core: Add extended port capabilities support

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An Extended Port Info packet is sent to each hw port during HCA init.
If it returns without error, we assume the port supports extended port
capabilities.

Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il>
Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Marcel Apfelbaum 2011-10-24 11:02:34 +02:00 committed by Roland Dreier
parent e36fb88a9a
commit 97285b7817
4 changed files with 57 additions and 0 deletions
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7
drivers/net/mlx4/main.c
View File

@ -998,6 +998,13 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
"ib capabilities (%d). Continuing with "
"caps = 0\n", port, err);
dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
err = mlx4_check_ext_port_caps(dev, port);
if (err)
mlx4_warn(dev, "failed to get port %d extended "
"port capabilities support info (%d)."
" Assuming not supported\n", port, err);
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, aborting\n",

1
drivers/net/mlx4/mlx4.h
View File

@ -450,6 +450,7 @@ void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port);
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);

42
drivers/net/mlx4/port.c
View File

@ -464,6 +464,48 @@ int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
return err;
}
int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
u8 *inbuf, *outbuf;
int err, packet_error;
inmailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(inmailbox))
return PTR_ERR(inmailbox);
outmailbox = mlx4_alloc_cmd_mailbox(dev);
if (IS_ERR(outmailbox)) {
mlx4_free_cmd_mailbox(dev, inmailbox);
return PTR_ERR(outmailbox);
}
inbuf = inmailbox->buf;
outbuf = outmailbox->buf;
memset(inbuf, 0, 256);
memset(outbuf, 0, 256);
inbuf[0] = 1;
inbuf[1] = 1;
inbuf[2] = 1;
inbuf[3] = 1;
*(__be16 *) (&inbuf[16]) = MLX4_ATTR_EXTENDED_PORT_INFO;
*(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
packet_error = be16_to_cpu(*(__be16 *) (outbuf + 4));
dev->caps.ext_port_cap[port] = (!err && !packet_error) ?
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO
: 0;
mlx4_free_cmd_mailbox(dev, inmailbox);
mlx4_free_cmd_mailbox(dev, outmailbox);
return err;
}
int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
{
struct mlx4_cmd_mailbox *mailbox;

7
include/linux/mlx4/device.h
View File

@ -82,6 +82,12 @@ enum {
MLX4_DEV_CAP_FLAG_COUNTERS = 1LL << 48
};
#define MLX4_ATTR_EXTENDED_PORT_INFO cpu_to_be16(0xff90)
enum {
MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO = 1 << 0
};
enum {
MLX4_BMME_FLAG_LOCAL_INV = 1 << 6,
MLX4_BMME_FLAG_REMOTE_INV = 1 << 7,
@ -276,6 +282,7 @@ struct mlx4_caps {
u32 port_mask;
enum mlx4_port_type possible_type[MLX4_MAX_PORTS + 1];
u32 max_counters;
u8 ext_port_cap[MLX4_MAX_PORTS + 1];
};
struct mlx4_buf_list {