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bnxt_en: Report FEC settings to ethtool. 

Implement .get_fecparam() method to report the configured and active FEC
settings.  Also report the supported and advertised FEC settings to
the .get_link_ksettings() method.

Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2020-09-27 13:42:17 -04:00 committed by David S. Miller
parent 745b5c6539
commit 8b2775890a
3 changed files with 109 additions and 3 deletions
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5
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -8960,9 +8960,10 @@ static int bnxt_update_link(struct bnxt *bp, bool chng_link_state)
}
link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED;
if (bp->hwrm_spec_code >= 0x10504)
if (bp->hwrm_spec_code >= 0x10504) {
link_info->fec_cfg = le16_to_cpu(resp->fec_cfg);
link_info->active_fec_sig_mode = resp->active_fec_signal_mode;
}
/* TODO: need to add more logic to report VF link */
if (chng_link_state) {
if (link_info->phy_link_status == BNXT_LINK_LINK)

18
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -1215,10 +1215,26 @@ struct bnxt_link_info {
u16 force_pam4_link_speed;
u32 preemphasis;
u8 module_status;
u8 active_fec_sig_mode;
u16 fec_cfg;
#define BNXT_FEC_NONE PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED
#define BNXT_FEC_AUTONEG_CAP PORT_PHY_QCFG_RESP_FEC_CFG_FEC_AUTONEG_SUPPORTED
#define BNXT_FEC_AUTONEG PORT_PHY_QCFG_RESP_FEC_CFG_FEC_AUTONEG_ENABLED
#define BNXT_FEC_ENC_BASE_R_CAP \
PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE74_SUPPORTED
#define BNXT_FEC_ENC_BASE_R PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE74_ENABLED
#define BNXT_FEC_ENC_RS PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE91_ENABLED
#define BNXT_FEC_ENC_RS_CAP \
PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE91_SUPPORTED
#define BNXT_FEC_ENC_LLRS_CAP \
(PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_1XN_SUPPORTED | \
PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_IEEE_SUPPORTED)
#define BNXT_FEC_ENC_RS \
(PORT_PHY_QCFG_RESP_FEC_CFG_FEC_CLAUSE91_ENABLED | \
PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS544_1XN_ENABLED | \
PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS544_IEEE_ENABLED)
#define BNXT_FEC_ENC_LLRS \
(PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_1XN_ENABLED | \
PORT_PHY_QCFG_RESP_FEC_CFG_FEC_RS272_IEEE_ENABLED)
/* copy of requested setting from ethtool cmd */
u8 autoneg;

89
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
View File

@ -11,6 +11,7 @@
#include <linux/ctype.h>
#include <linux/stringify.h>
#include <linux/ethtool.h>
#include <linux/linkmode.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/etherdevice.h>
@ -1533,6 +1534,27 @@ u32 _bnxt_fw_to_ethtool_adv_spds(u16 fw_speeds, u8 fw_pause)
(fw_speeds) |= BNXT_LINK_PAM4_SPEED_MSK_200GB; \
}
static void bnxt_fw_to_ethtool_advertised_fec(struct bnxt_link_info *link_info,
struct ethtool_link_ksettings *lk_ksettings)
{
u16 fec_cfg = link_info->fec_cfg;
if ((fec_cfg & BNXT_FEC_NONE) || !(fec_cfg & BNXT_FEC_AUTONEG)) {
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT,
lk_ksettings->link_modes.advertising);
return;
}
if (fec_cfg & BNXT_FEC_ENC_BASE_R)
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
lk_ksettings->link_modes.advertising);
if (fec_cfg & BNXT_FEC_ENC_RS)
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
lk_ksettings->link_modes.advertising);
if (fec_cfg & BNXT_FEC_ENC_LLRS)
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT,
lk_ksettings->link_modes.advertising);
}
static void bnxt_fw_to_ethtool_advertised_spds(struct bnxt_link_info *link_info,
struct ethtool_link_ksettings *lk_ksettings)
{
@ -1545,6 +1567,7 @@ static void bnxt_fw_to_ethtool_advertised_spds(struct bnxt_link_info *link_info,
BNXT_FW_TO_ETHTOOL_SPDS(fw_speeds, fw_pause, lk_ksettings, advertising);
fw_speeds = link_info->advertising_pam4;
BNXT_FW_TO_ETHTOOL_PAM4_SPDS(fw_speeds, lk_ksettings, advertising);
bnxt_fw_to_ethtool_advertised_fec(link_info, lk_ksettings);
}
static void bnxt_fw_to_ethtool_lp_adv(struct bnxt_link_info *link_info,
@ -1562,6 +1585,27 @@ static void bnxt_fw_to_ethtool_lp_adv(struct bnxt_link_info *link_info,
BNXT_FW_TO_ETHTOOL_PAM4_SPDS(fw_speeds, lk_ksettings, lp_advertising);
}
static void bnxt_fw_to_ethtool_support_fec(struct bnxt_link_info *link_info,
struct ethtool_link_ksettings *lk_ksettings)
{
u16 fec_cfg = link_info->fec_cfg;
if (fec_cfg & BNXT_FEC_NONE) {
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT,
lk_ksettings->link_modes.supported);
return;
}
if (fec_cfg & BNXT_FEC_ENC_BASE_R_CAP)
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
lk_ksettings->link_modes.supported);
if (fec_cfg & BNXT_FEC_ENC_RS_CAP)
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
lk_ksettings->link_modes.supported);
if (fec_cfg & BNXT_FEC_ENC_LLRS_CAP)
linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_LLRS_BIT,
lk_ksettings->link_modes.supported);
}
static void bnxt_fw_to_ethtool_support_spds(struct bnxt_link_info *link_info,
struct ethtool_link_ksettings *lk_ksettings)
{
@ -1579,6 +1623,7 @@ static void bnxt_fw_to_ethtool_support_spds(struct bnxt_link_info *link_info,
link_info->support_pam4_auto_speeds)
ethtool_link_ksettings_add_link_mode(lk_ksettings, supported,
Autoneg);
bnxt_fw_to_ethtool_support_fec(link_info, lk_ksettings);
}
u32 bnxt_fw_to_ethtool_speed(u16 fw_link_speed)
@ -1836,6 +1881,49 @@ set_setting_exit:
return rc;
}
static int bnxt_get_fecparam(struct net_device *dev,
struct ethtool_fecparam *fec)
{
struct bnxt *bp = netdev_priv(dev);
struct bnxt_link_info *link_info;
u8 active_fec;
u16 fec_cfg;
link_info = &bp->link_info;
fec_cfg = link_info->fec_cfg;
active_fec = link_info->active_fec_sig_mode &
PORT_PHY_QCFG_RESP_ACTIVE_FEC_MASK;
if (fec_cfg & BNXT_FEC_NONE) {
fec->fec = ETHTOOL_FEC_NONE;
fec->active_fec = ETHTOOL_FEC_NONE;
return 0;
}
if (fec_cfg & BNXT_FEC_AUTONEG)
fec->fec |= ETHTOOL_FEC_AUTO;
if (fec_cfg & BNXT_FEC_ENC_BASE_R)
fec->fec |= ETHTOOL_FEC_BASER;
if (fec_cfg & BNXT_FEC_ENC_RS)
fec->fec |= ETHTOOL_FEC_RS;
if (fec_cfg & BNXT_FEC_ENC_LLRS)
fec->fec |= ETHTOOL_FEC_LLRS;
switch (active_fec) {
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE74_ACTIVE:
fec->active_fec |= ETHTOOL_FEC_BASER;
break;
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_CLAUSE91_ACTIVE:
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_1XN_ACTIVE:
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS544_IEEE_ACTIVE:
fec->active_fec |= ETHTOOL_FEC_RS;
break;
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_1XN_ACTIVE:
case PORT_PHY_QCFG_RESP_ACTIVE_FEC_FEC_RS272_IEEE_ACTIVE:
fec->active_fec |= ETHTOOL_FEC_LLRS;
break;
}
return 0;
}
static void bnxt_get_pauseparam(struct net_device *dev,
struct ethtool_pauseparam *epause)
{
@ -3741,6 +3829,7 @@ const struct ethtool_ops bnxt_ethtool_ops = {
ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
.get_link_ksettings = bnxt_get_link_ksettings,
.set_link_ksettings = bnxt_set_link_ksettings,
.get_fecparam = bnxt_get_fecparam,
.get_pause_stats = bnxt_get_pause_stats,
.get_pauseparam = bnxt_get_pauseparam,
.set_pauseparam = bnxt_set_pauseparam,