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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 08/25] net/axgbe: fix the SFP codes check for DAC cables
Date: Mon, 20 May 2024 10:41:51 +0000	[thread overview]
Message-ID: <DM4PR12MB5055BADE5CCCEB0C7D527EE08DE92@DM4PR12MB5055.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20240507124305.2318-8-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 08/25] net/axgbe: fix the SFP codes check for DAC cables

The current AXGBE code assumes that offset 6 of EEPROM SFP DAC (passive) cables is NULL. However, some cables (the 5 meter and 7 meter Molex passive cables) have non-zero data at offset 6. Fix the logic by moving the passive cable check above the active checks, so as not to be improperly identified as an active cable. This will fix the issue for any passive cable that advertises 1000Base-CX in offset 6.

Without the fix the user will not get link UP for few DAC cables.

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_phy_impl.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
index 9c2ae7bba0..d4c4a89517 100644
--- a/drivers/net/axgbe/axgbe_phy_impl.c
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -625,7 +625,10 @@ static void axgbe_phy_sfp_parse_eeprom(struct axgbe_port *pdata)
        }

        /* Determine the type of SFP */
-       if (sfp_base[AXGBE_SFP_BASE_10GBE_CC] & AXGBE_SFP_BASE_10GBE_CC_SR)
+       if (phy_data->sfp_cable == AXGBE_SFP_CABLE_PASSIVE &&
+                axgbe_phy_sfp_bit_rate(sfp_eeprom, AXGBE_SFP_SPEED_10000))
+               phy_data->sfp_base = AXGBE_SFP_BASE_10000_CR;
+       else if (sfp_base[AXGBE_SFP_BASE_10GBE_CC] &
+AXGBE_SFP_BASE_10GBE_CC_SR)
                phy_data->sfp_base = AXGBE_SFP_BASE_10000_SR;
        else if (sfp_base[AXGBE_SFP_BASE_10GBE_CC] & AXGBE_SFP_BASE_10GBE_CC_LR)
                phy_data->sfp_base = AXGBE_SFP_BASE_10000_LR; @@ -642,9 +645,6 @@ static void axgbe_phy_sfp_parse_eeprom(struct axgbe_port *pdata)
                phy_data->sfp_base = AXGBE_SFP_BASE_1000_CX;
        else if (sfp_base[AXGBE_SFP_BASE_1GBE_CC] & AXGBE_SFP_BASE_1GBE_CC_T)
                phy_data->sfp_base = AXGBE_SFP_BASE_1000_T;
-       else if ((phy_data->sfp_cable == AXGBE_SFP_CABLE_PASSIVE) &&
-                axgbe_phy_sfp_bit_rate(sfp_eeprom, AXGBE_SFP_SPEED_10000))
-               phy_data->sfp_base = AXGBE_SFP_BASE_10000_CR;

        switch (phy_data->sfp_base) {
        case AXGBE_SFP_BASE_1000_T:
--
2.34.1


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

Thread overview: 29+ 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
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 [this message]
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 12:43   ` [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
2024-05-20 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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