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From: "Sebastian, Selwin" <Selwin.Sebastian@amd.com>
To: "Ande, Venkat Kumar" <VenkatKumar.Ande@amd.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>
Subject: RE: [PATCH v2 06/25] net/axgbe: yellow carp devices do not need rrc
Date: Mon, 20 May 2024 10:41:37 +0000	[thread overview]
Message-ID: <DM4PR12MB505520D18889B8FEA9809AC58DE92@DM4PR12MB5055.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20240507124305.2318-6-venkatkumar.ande@amd.com>

[AMD Official Use Only - AMD Internal Distribution Only]

Acked-by: Selwin Sebastian<selwin.sebastian@amd.com>

-----Original Message-----
From: Ande, Venkat Kumar <VenkatKumar.Ande@amd.com>
Sent: Tuesday, May 7, 2024 6:13 PM
To: dev@dpdk.org
Cc: Sebastian, Selwin <Selwin.Sebastian@amd.com>; Ande, Venkat Kumar <VenkatKumar.Ande@amd.com>; stable@dpdk.org
Subject: [PATCH v2 06/25] net/axgbe: yellow carp devices do not need rrc

Link stability issues are noticed on Yellow carp platforms when Receiver Reset Cycle is issued. Since the CDR workaround is disabled on these platforms, the Receiver Reset Cycle is not needed.

So, avoid issuing rrc on Yellow carp platforms.

Without the fix the user will not get the link UP.

Fixes: a5c7273771e8 ("net/axgbe: add phy programming APIs")
Cc: stable@dpdk.org

Signed-off-by: Venkat Kumar Ande <venkatkumar.ande@amd.com>
---
 drivers/net/axgbe/axgbe_ethdev.c   | 5 +++++
 drivers/net/axgbe/axgbe_ethdev.h   | 1 +
 drivers/net/axgbe/axgbe_phy_impl.c | 2 +-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index e5d8f7db02..86c2ec64e0 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -208,6 +208,7 @@ static struct axgbe_version_data axgbe_v2a = {
        .ecc_support                    = 1,
        .i2c_support                    = 1,
        .an_cdr_workaround              = 1,
+       .enable_rrc                     = 1,
 };

 static struct axgbe_version_data axgbe_v2b = { @@ -220,6 +221,7 @@ static struct axgbe_version_data axgbe_v2b = {
        .ecc_support                    = 1,
        .i2c_support                    = 1,
        .an_cdr_workaround              = 1,
+       .enable_rrc                     = 1,
 };

 static const struct rte_eth_desc_lim rx_desc_lim = { @@ -2269,6 +2271,9 @@ eth_axgbe_dev_init(struct rte_eth_dev *eth_dev)

                        /* Yellow Carp devices do not need cdr workaround */
                        pdata->vdata->an_cdr_workaround = 0;
+
+                       /* Yellow Carp devices do not need rrc */
+                       pdata->vdata->enable_rrc = 0;
                } else {
                        unknown_cpu = 1;
                }
diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index df5d63c493..f122dfd516 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -463,6 +463,7 @@ struct axgbe_version_data {
        unsigned int ecc_support;
        unsigned int i2c_support;
        unsigned int an_cdr_workaround;
+       unsigned int enable_rrc;
 };

 struct axgbe_mmc_stats {
diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
index ee9dcbe3da..f51830f800 100644
--- a/drivers/net/axgbe/axgbe_phy_impl.c
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -1708,7 +1708,7 @@ static int axgbe_phy_link_status(struct axgbe_port *pdata, int *an_restart)
        }

        /* No link, attempt a receiver reset cycle */
-       if (phy_data->rrc_count++) {
+       if (pdata->vdata->enable_rrc && phy_data->rrc_count++) {
                phy_data->rrc_count = 0;
                axgbe_phy_rrc(pdata);
        }
--
2.34.1


  reply	other threads:[~2024-05-20 10:41 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20240412125013.10498-1-VenkatKumar.Ande@amd.com>
2024-05-07 12:42 ` [PATCH v2 01/25] net/axgbe: fix mdio access for non-zero ports and CL45 PHYs Venkat Kumar Ande
2024-05-07 12:42   ` [PATCH v2 02/25] net/axgbe: reset link when the link never comes back Venkat Kumar Ande
2024-05-20 10:40     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 03/25] net/axgbe: fix fluctuations for 1G BELFUSE SFP Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 04/25] net/axgbe: update DMA coherency values Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 05/25] net/axgbe: disable interrupts during device removal Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 06/25] net/axgbe: yellow carp devices do not need rrc Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin [this message]
2024-05-07 12:42   ` [PATCH v2 07/25] net/axgbe: enable PLL control for fixed PHY modes only Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin
2024-05-20 11:25     ` Ferruh Yigit
2024-05-07 12:42   ` [PATCH v2 08/25] net/axgbe: fix the SFP codes check for DAC cables Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 09/25] net/axgbe: fix logic around active and passive cables Venkat Kumar Ande
2024-05-20 10:41     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 10/25] net/axgbe: check only the minimum speed for cables Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 11/25] net/axgbe: flow Tx Ctrl Registers are h/w version dependent Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 12/25] net/axgbe: delay AN timeout during KR training Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 13/25] net/axgbe: remove use of comm owned field Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 14/25] net/axgbe: remove field of SFP diagnostic support Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 15/25] net/axgbe: improve SFP 100Mbps auto-negotiation Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 16/25] net/axgbe: remove unnecessary conversion to bool Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 17/25] net/axgbe: use definitions for mailbox commands Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 18/25] net/axgbe: add support for 10 Mbps speed Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:42   ` [PATCH v2 19/25] net/axgbe: separate C22 and C45 transactions Venkat Kumar Ande
2024-05-20 10:42     ` Sebastian, Selwin
2024-05-07 12:43   ` [PATCH v2 20/25] net/axgbe: replace mii generic macro for c45 with AXGBE Venkat Kumar Ande
2024-05-20 10:43     ` Sebastian, Selwin
2024-05-20 11:25     ` Ferruh Yigit
2024-05-07 12:43   ` [PATCH v2 21/25] net/axgbe: add 2.5GbE support to 10G BaseT mode Venkat Kumar Ande
2024-05-20 10:43     ` Sebastian, Selwin
2024-05-07 12:43   ` [PATCH v2 22/25] net/axgbe: add support for Rx adaptation Venkat Kumar Ande
2024-05-20 10:43     ` Sebastian, Selwin
2024-05-07 12:43   ` [PATCH v2 23/25] net/axgbe: fix the false linkup in axgbe PHY status Venkat Kumar Ande
2024-05-20 10:43     ` Sebastian, Selwin
2024-05-20 11:25     ` Ferruh Yigit
2024-05-07 12:43   ` [PATCH v2 24/25] net/axgbe: extend 10Mbps support to MAC version 21H Venkat Kumar Ande
2024-05-20 10:43     ` Sebastian, Selwin
2024-05-07 12:43   ` [PATCH v2 25/25] net/axgbe: modify debug messages Venkat Kumar Ande
2024-05-20 10:43     ` Sebastian, Selwin
2024-05-20 10:40   ` [PATCH v2 01/25] net/axgbe: fix mdio access for non-zero ports and CL45 PHYs Sebastian, Selwin
2024-05-20 11:26   ` Ferruh Yigit

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