[PATCH 2/4] net/bnxt: fix link speed setting with autoneg off
From: Ajit Khaparde <ajit.khaparde@broadcom.com>
Date: 2018-02-07 01:16:14
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
When Autoneg is turned off especially on remote side,
link does not come up. This patch fixes that.
Fixes: 7bc8e9a227cc ("net/bnxt: support async link notification")
Cc: stable@dpdk.org
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
drivers/net/bnxt/bnxt.h | 1 +
drivers/net/bnxt/bnxt_hwrm.c | 22 ++++++++++++++++++++--
2 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 6776c64a5..b5a0badfc 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h@@ -163,6 +163,7 @@ struct bnxt_link_info { uint16_t link_speed; uint16_t support_speeds; uint16_t auto_link_speed; + uint16_t force_link_speed; uint16_t auto_link_speed_mask; uint32_t preemphasis; uint8_t phy_type;
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 4987cf0a9..5450a0253 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c@@ -894,12 +894,22 @@ static int bnxt_hwrm_port_phy_qcfg(struct bnxt *bp, link_info->support_speeds = rte_le_to_cpu_16(resp->support_speeds); link_info->auto_link_speed = rte_le_to_cpu_16(resp->auto_link_speed); link_info->preemphasis = rte_le_to_cpu_32(resp->preemphasis); + link_info->force_link_speed = rte_le_to_cpu_16(resp->force_link_speed); link_info->phy_ver[0] = resp->phy_maj; link_info->phy_ver[1] = resp->phy_min; link_info->phy_ver[2] = resp->phy_bld; HWRM_UNLOCK(); + PMD_DRV_LOG(DEBUG, "Link Speed %d\n", link_info->link_speed); + PMD_DRV_LOG(DEBUG, "Auto Mode %d\n", link_info->auto_mode); + PMD_DRV_LOG(DEBUG, "Support Speeds %x\n", link_info->support_speeds); + PMD_DRV_LOG(DEBUG, "Auto Link Speed %x\n", link_info->auto_link_speed); + PMD_DRV_LOG(DEBUG, "Auto Link Speed Mask %x\n", + link_info->auto_link_speed_mask); + PMD_DRV_LOG(DEBUG, "Forced Link Speed %x\n", + link_info->force_link_speed); + return rc; }
@@ -2220,7 +2230,9 @@ int bnxt_set_hwrm_link_config(struct bnxt *bp, bool link_up) autoneg = bnxt_check_eth_link_autoneg(dev_conf->link_speeds); speed = bnxt_parse_eth_link_speed(dev_conf->link_speeds); link_req.phy_flags = HWRM_PORT_PHY_CFG_INPUT_FLAGS_RESET_PHY; - if (autoneg == 1) { + /* Autoneg can be done only when the FW allows */ + if (autoneg == 1 && !(bp->link_info.auto_link_speed || + bp->link_info.force_link_speed)) { link_req.phy_flags |= HWRM_PORT_PHY_CFG_INPUT_FLAGS_RESTART_AUTONEG; link_req.auto_link_speed_mask =
@@ -2238,7 +2250,13 @@ int bnxt_set_hwrm_link_config(struct bnxt *bp, bool link_up) } link_req.phy_flags |= HWRM_PORT_PHY_CFG_INPUT_FLAGS_FORCE; - link_req.link_speed = speed; + /* If user wants a particular speed try that first. */ + if (speed) + link_req.link_speed = speed; + else if (bp->link_info.force_link_speed) + link_req.link_speed = bp->link_info.force_link_speed; + else + link_req.link_speed = bp->link_info.auto_link_speed; } link_req.duplex = bnxt_parse_eth_link_duplex(dev_conf->link_speeds); link_req.auto_pause = bp->link_info.auto_pause;
--
2.14.3 (Apple Git-98)