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bnxt_en: Add bnxt_en initial port params table and register it 

Register devlink_port with devlink and create initial port params
table for bnxt_en. The table consists of a generic parameter:

wake_on_lan: Enables Wake on Lan for this port when magic packet
is received with this port's MAC address using ACPI pattern.
If enabled, the controller asserts a wake pin upon reception of
WoL packet.  ACPI (Advanced Configuration and Power Interface) is
an industry specification for the efficient handling of power
consumption in desktop and mobile computers.

v2->v3:
- Modify bnxt_dl_wol_validate(), to throw error message when user gives
  value other than DEVLINK_PARAM_WAKE_MAGIC ot to disable WOL.
- Use netdev_err() instead of netdev_warn(), when devlink_port_register()
  and devlink_port_params_register() returns error. Also, don't log rc
  in this message.

Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vasundhara Volam 2019-01-28 18:00:27 +05:30 committed by David S. Miller
parent b639583f9e
commit 782a624d00
3 changed files with 44 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -1609,6 +1609,7 @@ struct bnxt {
/* devlink interface and vf-rep structs */
struct devlink *dl;
struct devlink_port dl_port;
enum devlink_eswitch_mode eswitch_mode;
struct bnxt_vf_rep **vf_reps; /* array of vf-rep ptrs */
u16 *cfa_code_map; /* cfa_code -> vf_idx map */

43
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
View File

@ -37,6 +37,8 @@ static const struct bnxt_dl_nvm_param nvm_params[] = {
NVM_OFF_MSIX_VEC_PER_PF_MIN, BNXT_NVM_SHARED_CFG, 7},
{BNXT_DEVLINK_PARAM_ID_GRE_VER_CHECK, NVM_OFF_DIS_GRE_VER_CHECK,
BNXT_NVM_SHARED_CFG, 1},
{DEVLINK_PARAM_GENERIC_ID_WOL, NVM_OFF_WOL, BNXT_NVM_PORT_CFG, 1},
};
static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
@ -70,7 +72,8 @@ static int bnxt_hwrm_nvm_req(struct bnxt *bp, u32 param_id, void *msg,
bytesize = roundup(nvm_param.num_bits, BITS_PER_BYTE) / BITS_PER_BYTE;
switch (bytesize) {
case 1:
if (nvm_param.num_bits == 1)
if (nvm_param.num_bits == 1 &&
nvm_param.id != DEVLINK_PARAM_GENERIC_ID_WOL)
buf = &val->vbool;
else
buf = &val->vu8;
@ -164,6 +167,17 @@ static int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
return 0;
}
static int bnxt_dl_wol_validate(struct devlink *dl, u32 id,
union devlink_param_value val,
struct netlink_ext_ack *extack)
{
if (val.vu8 && val.vu8 != DEVLINK_PARAM_WAKE_MAGIC) {
NL_SET_ERR_MSG_MOD(extack, "WOL type is not supported");
return -EINVAL;
}
return 0;
}
static const struct devlink_param bnxt_dl_params[] = {
DEVLINK_PARAM_GENERIC(ENABLE_SRIOV,
BIT(DEVLINK_PARAM_CMODE_PERMANENT),
@ -188,6 +202,12 @@ static const struct devlink_param bnxt_dl_params[] = {
NULL),
};
static const struct devlink_param bnxt_dl_port_params[] = {
DEVLINK_PARAM_GENERIC(WOL, BIT(DEVLINK_PARAM_CMODE_PERMANENT),
bnxt_dl_nvm_param_get, bnxt_dl_nvm_param_set,
bnxt_dl_wol_validate),
};
int bnxt_dl_register(struct bnxt *bp)
{
struct devlink *dl;
@ -225,8 +245,26 @@ int bnxt_dl_register(struct bnxt *bp)
goto err_dl_unreg;
}
rc = devlink_port_register(dl, &bp->dl_port, bp->pf.port_id);
if (rc) {
netdev_err(bp->dev, "devlink_port_register failed");
goto err_dl_param_unreg;
}
devlink_port_type_eth_set(&bp->dl_port, bp->dev);
rc = devlink_port_params_register(&bp->dl_port, bnxt_dl_port_params,
ARRAY_SIZE(bnxt_dl_port_params));
if (rc) {
netdev_err(bp->dev, "devlink_port_params_register failed");
goto err_dl_port_unreg;
}
return 0;
err_dl_port_unreg:
devlink_port_unregister(&bp->dl_port);
err_dl_param_unreg:
devlink_params_unregister(dl, bnxt_dl_params,
ARRAY_SIZE(bnxt_dl_params));
err_dl_unreg:
devlink_unregister(dl);
err_dl_free:
@ -242,6 +280,9 @@ void bnxt_dl_unregister(struct bnxt *bp)
if (!dl)
return;
devlink_port_params_unregister(&bp->dl_port, bnxt_dl_port_params,
ARRAY_SIZE(bnxt_dl_port_params));
devlink_port_unregister(&bp->dl_port);
devlink_params_unregister(dl, bnxt_dl_params,
ARRAY_SIZE(bnxt_dl_params));
devlink_unregister(dl);

1
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
View File

@ -35,6 +35,7 @@ static inline void bnxt_link_bp_to_dl(struct bnxt *bp, struct devlink *dl)
#define NVM_OFF_MSIX_VEC_PER_PF_MAX 108
#define NVM_OFF_MSIX_VEC_PER_PF_MIN 114
#define NVM_OFF_WOL 152
#define NVM_OFF_IGNORE_ARI 164
#define NVM_OFF_DIS_GRE_VER_CHECK 171
#define NVM_OFF_ENABLE_SRIOV 401