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Message-Id: <1545367333-8855-9-git-send-email-vasundhara-v.volam@broadcom.com>
Date: Fri, 21 Dec 2018 10:12:13 +0530
From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
To: davem@...emloft.net
Cc: michael.chan@...adcom.com, jiri@...lanox.com,
jakub.kicinski@...ronome.com, mkubecek@...e.cz,
netdev@...r.kernel.org
Subject: [PATCH net-next v6 RFC 8/8] 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@...adcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 +
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c | 43 ++++++++++++++++++++++-
drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h | 1 +
3 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 4fdfd7a..098bc26 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1589,6 +1589,7 @@ 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 */
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 140dbd6..6ed6eec 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -37,6 +37,8 @@ enum bnxt_dl_param_id {
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 int bnxt_dl_msix_validate(struct devlink *dl, u32 id,
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);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
index 5b6b2c7..da065ca 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.h
@@ -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
--
1.8.3.1
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