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[dpdk-dev,02/18] i40e: disable setting phy configuration

Message ID 1429518150-28098-3-git-send-email-helin.zhang@intel.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Helin Zhang April 20, 2015, 8:22 a.m. UTC
There was a known linke issue on 40G ports on NVM version (FVL3E),
when setting phy configuration. As a workaround, setting phy
configuration should be disabled. The impact is that the link cannot
be forcedly configured, which doesn't affect any feature functions.
The workaround can be removed when a formal fix is ready later.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
 lib/librte_pmd_i40e/i40e_ethdev.c | 4 ++++
 1 file changed, 4 insertions(+)
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diff --git a/lib/librte_pmd_i40e/i40e_ethdev.c b/lib/librte_pmd_i40e/i40e_ethdev.c
index df8686f..9fc2ee7 100644
--- a/lib/librte_pmd_i40e/i40e_ethdev.c
+++ b/lib/librte_pmd_i40e/i40e_ethdev.c
@@ -791,6 +791,10 @@  i40e_phy_conf_link(struct i40e_hw *hw, uint8_t abilities, uint8_t force_speed)
 	int ret = -ENOTSUP;
+	/* Skip it on 40G interfaces, as a workaround for the link issue */
+	if (i40e_is_40G_device(hw->device_id))
+		return I40E_SUCCESS;
 	status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_ab,
 	if (status)