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mlx5-updates-2017-04-22 

Sparse and compiler warnings fixes from Stephen Hemminger.
 
 From Roi Dayan and Or Gerlitz, Add devlink and mlx5 support for controlling
 E-Switch encapsulation mode, this knob will enable HW support for applying
 encapsulation/decapsulation to VF traffic as part of SRIOV e-switch offloading.
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Merge tag 'mlx5-updates-2017-04-22' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2017-04-22

Sparse and compiler warnings fixes from Stephen Hemminger.

From Roi Dayan and Or Gerlitz, Add devlink and mlx5 support for controlling
E-Switch encapsulation mode, this knob will enable HW support for applying
encapsulation/decapsulation to VF traffic as part of SRIOV e-switch offloading.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
David S. Miller 2017-04-24 14:11:10 -04:00
parent 58c4c6a3f7 8bf3198a5e
commit bc95cd8e8b
10 changed files with 179 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
View File

@ -39,6 +39,7 @@
#include "en.h"
#include "en_tc.h"
#include "eswitch.h"
#include "ipoib.h"
static inline bool mlx5e_rx_hw_stamp(struct mlx5e_tstamp *tstamp)
{

1
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View File

@ -33,6 +33,7 @@
#include <linux/tcp.h>
#include <linux/if_vlan.h>
#include "en.h"
#include "ipoib.h"
#define MLX5E_SQ_NOPS_ROOM MLX5_SEND_WQE_MAX_WQEBBS
#define MLX5E_SQ_STOP_ROOM (MLX5_SEND_WQE_MAX_WQEBBS +\

5
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -1806,6 +1806,11 @@ int mlx5_eswitch_init(struct mlx5_core_dev *dev)
esw->enabled_vports = 0;
esw->mode = SRIOV_NONE;
esw->offloads.inline_mode = MLX5_INLINE_MODE_NONE;
if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, encap) &&
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap))
esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_BASIC;
else
esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_NONE;
dev->priv.eswitch = esw;
return 0;

3
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
View File

@ -210,6 +210,7 @@ struct mlx5_esw_offload {
DECLARE_HASHTABLE(encap_tbl, 8);
u8 inline_mode;
u64 num_flows;
u8 encap;
};
struct mlx5_eswitch {
@ -322,6 +323,8 @@ int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode);
int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode);
int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode);
int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, u8 encap);
int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, u8 *encap);
void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw,
int vport_index,
struct mlx5_eswitch_rep *rep);

156
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -426,22 +426,68 @@ out:
return err;
}
#define MAX_PF_SQ 256
#define ESW_OFFLOADS_NUM_GROUPS 4
static int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports)
static int esw_create_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5_flow_table_attr ft_attr = {};
int table_size, ix, esw_size, err = 0;
struct mlx5_core_dev *dev = esw->dev;
struct mlx5_flow_namespace *root_ns;
struct mlx5_flow_table *fdb = NULL;
struct mlx5_flow_group *g;
u32 *flow_group_in;
void *match_criteria;
int esw_size, err = 0;
u32 flags = 0;
root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
if (!root_ns) {
esw_warn(dev, "Failed to get FDB flow namespace\n");
err = -EOPNOTSUPP;
goto out;
}
esw_debug(dev, "Create offloads FDB table, min (max esw size(2^%d), max counters(%d)*groups(%d))\n",
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size),
MLX5_CAP_GEN(dev, max_flow_counter), ESW_OFFLOADS_NUM_GROUPS);
esw_size = min_t(int, MLX5_CAP_GEN(dev, max_flow_counter) * ESW_OFFLOADS_NUM_GROUPS,
1 << MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
if (esw->offloads.encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE)
flags |= MLX5_FLOW_TABLE_TUNNEL_EN;
fdb = mlx5_create_auto_grouped_flow_table(root_ns, FDB_FAST_PATH,
esw_size,
ESW_OFFLOADS_NUM_GROUPS, 0,
flags);
if (IS_ERR(fdb)) {
err = PTR_ERR(fdb);
esw_warn(dev, "Failed to create Fast path FDB Table err %d\n", err);
goto out;
}
esw->fdb_table.fdb = fdb;
out:
return err;
}
static void esw_destroy_offloads_fast_fdb_table(struct mlx5_eswitch *esw)
{
mlx5_destroy_flow_table(esw->fdb_table.fdb);
}
#define MAX_PF_SQ 256
static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5_flow_table_attr ft_attr = {};
struct mlx5_core_dev *dev = esw->dev;
struct mlx5_flow_namespace *root_ns;
struct mlx5_flow_table *fdb = NULL;
int table_size, ix, err = 0;
struct mlx5_flow_group *g;
void *match_criteria;
u32 *flow_group_in;
esw_debug(esw->dev, "Create offloads FDB Tables\n");
flow_group_in = mlx5_vzalloc(inlen);
if (!flow_group_in)
return -ENOMEM;
@ -453,27 +499,9 @@ static int esw_create_offloads_fdb_table(struct mlx5_eswitch *esw, int nvports)
goto ns_err;
}
esw_debug(dev, "Create offloads FDB table, min (max esw size(2^%d), max counters(%d)*groups(%d))\n",
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size),
MLX5_CAP_GEN(dev, max_flow_counter), ESW_OFFLOADS_NUM_GROUPS);
esw_size = min_t(int, MLX5_CAP_GEN(dev, max_flow_counter) * ESW_OFFLOADS_NUM_GROUPS,
1 << MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
if (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, encap) &&
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap))
flags |= MLX5_FLOW_TABLE_TUNNEL_EN;
fdb = mlx5_create_auto_grouped_flow_table(root_ns, FDB_FAST_PATH,
esw_size,
ESW_OFFLOADS_NUM_GROUPS, 0,
flags);
if (IS_ERR(fdb)) {
err = PTR_ERR(fdb);
esw_warn(dev, "Failed to create Fast path FDB Table err %d\n", err);
err = esw_create_offloads_fast_fdb_table(esw);
if (err)
goto fast_fdb_err;
}
esw->fdb_table.fdb = fdb;
table_size = nvports + MAX_PF_SQ + 1;
@ -545,18 +573,18 @@ ns_err:
return err;
}
static void esw_destroy_offloads_fdb_table(struct mlx5_eswitch *esw)
static void esw_destroy_offloads_fdb_tables(struct mlx5_eswitch *esw)
{
if (!esw->fdb_table.fdb)
return;
esw_debug(esw->dev, "Destroy offloads FDB Table\n");
esw_debug(esw->dev, "Destroy offloads FDB Tables\n");
mlx5_del_flow_rules(esw->fdb_table.offloads.miss_rule);
mlx5_destroy_flow_group(esw->fdb_table.offloads.send_to_vport_grp);
mlx5_destroy_flow_group(esw->fdb_table.offloads.miss_grp);
mlx5_destroy_flow_table(esw->fdb_table.offloads.fdb);
mlx5_destroy_flow_table(esw->fdb_table.fdb);
esw_destroy_offloads_fast_fdb_table(esw);
}
static int esw_create_offloads_table(struct mlx5_eswitch *esw)
@ -716,7 +744,7 @@ int esw_offloads_init(struct mlx5_eswitch *esw, int nvports)
mlx5_remove_dev_by_protocol(esw->dev, MLX5_INTERFACE_PROTOCOL_IB);
mlx5_dev_list_unlock();
err = esw_create_offloads_fdb_table(esw, nvports);
err = esw_create_offloads_fdb_tables(esw, nvports);
if (err)
goto create_fdb_err;
@ -753,7 +781,7 @@ create_fg_err:
esw_destroy_offloads_table(esw);
create_ft_err:
esw_destroy_offloads_fdb_table(esw);
esw_destroy_offloads_fdb_tables(esw);
create_fdb_err:
/* enable back PF RoCE */
@ -799,7 +827,7 @@ void esw_offloads_cleanup(struct mlx5_eswitch *esw, int nvports)
esw_destroy_vport_rx_group(esw);
esw_destroy_offloads_table(esw);
esw_destroy_offloads_fdb_table(esw);
esw_destroy_offloads_fdb_tables(esw);
}
static int esw_mode_from_devlink(u16 mode, u16 *mlx5_mode)
@ -1016,6 +1044,66 @@ int mlx5_eswitch_inline_mode_get(struct mlx5_eswitch *esw, int nvfs, u8 *mode)
return 0;
}
int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink, u8 encap)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
int err;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
if (encap != DEVLINK_ESWITCH_ENCAP_MODE_NONE &&
(!MLX5_CAP_ESW_FLOWTABLE_FDB(dev, encap) ||
!MLX5_CAP_ESW_FLOWTABLE_FDB(dev, decap)))
return -EOPNOTSUPP;
if (encap && encap != DEVLINK_ESWITCH_ENCAP_MODE_BASIC)
return -EOPNOTSUPP;
if (esw->mode == SRIOV_LEGACY) {
esw->offloads.encap = encap;
return 0;
}
if (esw->offloads.encap == encap)
return 0;
if (esw->offloads.num_flows > 0) {
esw_warn(dev, "Can't set encapsulation when flows are configured\n");
return -EOPNOTSUPP;
}
esw_destroy_offloads_fast_fdb_table(esw);
esw->offloads.encap = encap;
err = esw_create_offloads_fast_fdb_table(esw);
if (err) {
esw_warn(esw->dev, "Failed re-creating fast FDB table, err %d\n", err);
esw->offloads.encap = !encap;
(void) esw_create_offloads_fast_fdb_table(esw);
}
return err;
}
int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink, u8 *encap)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
struct mlx5_eswitch *esw = dev->priv.eswitch;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
return -EOPNOTSUPP;
if (esw->mode == SRIOV_NONE)
return -EOPNOTSUPP;
*encap = esw->offloads.encap;
return 0;
}
void mlx5_eswitch_register_vport_rep(struct mlx5_eswitch *esw,
int vport_index,
struct mlx5_eswitch_rep *__rep)

24
drivers/net/ethernet/mellanox/mlx5/core/ipoib.c
View File

@ -178,7 +178,7 @@ static int mlx5i_init_tx(struct mlx5e_priv *priv)
return 0;
}
void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
static void mlx5i_cleanup_tx(struct mlx5e_priv *priv)
{
struct mlx5i_priv *ipriv = priv->ppriv;
@ -359,9 +359,10 @@ unlock:
return 0;
}
#ifdef notusedyet
/* IPoIB RDMA netdev callbacks */
int mlx5i_attach_mcast(struct net_device *netdev, struct ib_device *hca,
union ib_gid *gid, u16 lid, int set_qkey)
static int mlx5i_attach_mcast(struct net_device *netdev, struct ib_device *hca,
union ib_gid *gid, u16 lid, int set_qkey)
{
struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
struct mlx5_core_dev *mdev = epriv->mdev;
@ -377,8 +378,8 @@ int mlx5i_attach_mcast(struct net_device *netdev, struct ib_device *hca,
return err;
}
int mlx5i_detach_mcast(struct net_device *netdev, struct ib_device *hca,
union ib_gid *gid, u16 lid)
static int mlx5i_detach_mcast(struct net_device *netdev, struct ib_device *hca,
union ib_gid *gid, u16 lid)
{
struct mlx5e_priv *epriv = mlx5i_epriv(netdev);
struct mlx5_core_dev *mdev = epriv->mdev;
@ -395,7 +396,7 @@ int mlx5i_detach_mcast(struct net_device *netdev, struct ib_device *hca,
return err;
}
int mlx5i_xmit(struct net_device *dev, struct sk_buff *skb,
static int mlx5i_xmit(struct net_device *dev, struct sk_buff *skb,
struct ib_ah *address, u32 dqpn, u32 dqkey)
{
struct mlx5e_priv *epriv = mlx5i_epriv(dev);
@ -404,6 +405,7 @@ int mlx5i_xmit(struct net_device *dev, struct sk_buff *skb,
return mlx5i_sq_xmit(sq, skb, &mah->av, dqpn, dqkey);
}
#endif
static int mlx5i_check_required_hca_cap(struct mlx5_core_dev *mdev)
{
@ -418,10 +420,10 @@ static int mlx5i_check_required_hca_cap(struct mlx5_core_dev *mdev)
return 0;
}
struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
struct ib_device *ibdev,
const char *name,
void (*setup)(struct net_device *))
static struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev,
struct ib_device *ibdev,
const char *name,
void (*setup)(struct net_device *))
{
const struct mlx5e_profile *profile = &mlx5i_nic_profile;
int nch = profile->max_nch(mdev);
@ -480,7 +482,7 @@ free_mdev_resources:
}
EXPORT_SYMBOL(mlx5_rdma_netdev_alloc);
void mlx5_rdma_netdev_free(struct net_device *netdev)
static void mlx5_rdma_netdev_free(struct net_device *netdev)
{
struct mlx5e_priv *priv = mlx5i_epriv(netdev);
const struct mlx5e_profile *profile = priv->profile;

2
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@ -1280,6 +1280,8 @@ static const struct devlink_ops mlx5_devlink_ops = {
.eswitch_mode_get = mlx5_devlink_eswitch_mode_get,
.eswitch_inline_mode_set = mlx5_devlink_eswitch_inline_mode_set,
.eswitch_inline_mode_get = mlx5_devlink_eswitch_inline_mode_get,
.eswitch_encap_mode_set = mlx5_devlink_eswitch_encap_mode_set,
.eswitch_encap_mode_get = mlx5_devlink_eswitch_encap_mode_get,
#endif
};

2
include/net/devlink.h
View File

@ -268,6 +268,8 @@ struct devlink_ops {
int (*eswitch_mode_set)(struct devlink *devlink, u16 mode);
int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode);
int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 *p_encap_mode);
int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode);
};
static inline void *devlink_priv(struct devlink *devlink)

7
include/uapi/linux/devlink.h
View File

@ -119,6 +119,11 @@ enum devlink_eswitch_inline_mode {
DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT,
};
enum devlink_eswitch_encap_mode {
DEVLINK_ESWITCH_ENCAP_MODE_NONE,
DEVLINK_ESWITCH_ENCAP_MODE_BASIC,
};
enum devlink_attr {
/* don't change the order or add anything between, this is ABI! */
DEVLINK_ATTR_UNSPEC,
@ -195,6 +200,8 @@ enum devlink_attr {
DEVLINK_ATTR_PAD,
DEVLINK_ATTR_ESWITCH_ENCAP_MODE, /* u8 */
/* add new attributes above here, update the policy in devlink.c */
__DEVLINK_ATTR_MAX,

26
net/core/devlink.c
View File

@ -1397,10 +1397,10 @@ static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink,
u32 seq, int flags)
{
const struct devlink_ops *ops = devlink->ops;
u8 inline_mode, encap_mode;
void *hdr;
int err = 0;
u16 mode;
u8 inline_mode;
hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
if (!hdr)
@ -1429,6 +1429,15 @@ static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink,
goto nla_put_failure;
}
if (ops->eswitch_encap_mode_get) {
err = ops->eswitch_encap_mode_get(devlink, &encap_mode);
if (err)
goto nla_put_failure;
err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode);
if (err)
goto nla_put_failure;
}
genlmsg_end(msg, hdr);
return 0;
@ -1468,9 +1477,9 @@ static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb,
{
struct devlink *devlink = info->user_ptr[0];
const struct devlink_ops *ops = devlink->ops;
u16 mode;
u8 inline_mode;
u8 inline_mode, encap_mode;
int err = 0;
u16 mode;
if (!ops)
return -EOPNOTSUPP;
@ -1493,6 +1502,16 @@ static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb,
if (err)
return err;
}
if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) {
if (!ops->eswitch_encap_mode_set)
return -EOPNOTSUPP;
encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]);
err = ops->eswitch_encap_mode_set(devlink, encap_mode);
if (err)
return err;
}
return 0;
}
@ -2190,6 +2209,7 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
[DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 },
[DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 },
[DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 },
[DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 },
[DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING },
[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 },
};