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net/bnxt: fix speed autonegotiation

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The "active_fec_signal_mode" in HWRM_PORT_PHY_QCFG response
does not return correct value till the link is up. Driver cannot
rely on active_fec_signal_mode while setting autoneg speed.

While setting autoneg speed, driver is currently checking only
"auto_link_speed_mask". Fixed to check "auto_pam4_link_speed_mask"
as well. Also, while setting auto mode and setting speed mask,
driver will have to set both NRZ and PAM4 mask.

Fixes: c23f9ded03 ("net/bnxt: support 200G PAM4 link")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
This commit is contained in:
Kalesh AP 2022-04-27 20:28:16 +05:30 committed by Ajit Khaparde
parent 8599820580
commit 34a0759478
1 changed files with 4 additions and 4 deletions
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8
drivers/net/bnxt/bnxt_hwrm.c
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@ -1429,17 +1429,17 @@ static int bnxt_hwrm_port_phy_cfg(struct bnxt *bp, struct bnxt_link_info *conf)
}
}
/* AutoNeg - Advertise speeds specified. */
if (conf->auto_link_speed_mask &&
if ((conf->auto_link_speed_mask || conf->auto_pam4_link_speed_mask) &&
!(conf->phy_flags & HWRM_PORT_PHY_CFG_INPUT_FLAGS_FORCE)) {
req.auto_mode =
HWRM_PORT_PHY_CFG_INPUT_AUTO_MODE_SPEED_MASK;
if (conf->auto_pam4_link_speed_mask &&
bp->link_info->link_signal_mode) {
if (conf->auto_pam4_link_speed_mask) {
enables |=
HWRM_PORT_PHY_CFG_IN_EN_AUTO_PAM4_LINK_SPD_MASK;
req.auto_link_pam4_speed_mask =
rte_cpu_to_le_16(conf->auto_pam4_link_speed_mask);
} else {
}
if (conf->auto_link_speed_mask) {
enables |=
HWRM_PORT_PHY_CFG_IN_EN_AUTO_LINK_SPEED_MASK;
req.auto_link_speed_mask =