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From: Venkat Kumar Ande <venkatkumar.ande@amd.com>
To: <dev@dpdk.org>
Cc: <Selwin.Sebastian@amd.com>,
	Venkat Kumar Ande <venkatkumar.ande@amd.com>,  <stable@dpdk.org>
Subject: [PATCH v2 10/25] net/axgbe: check only the minimum speed for cables
Date: Tue, 7 May 2024 18:12:50 +0530	[thread overview]
Message-ID: <20240507124305.2318-10-venkatkumar.ande@amd.com> (raw)
In-Reply-To: <20240507124305.2318-1-venkatkumar.ande@amd.com>

There are cables that exist that can support speeds in excess of 10GbE.
The driver, however, restricts the EEPROM advertised nominal bitrate to
a specific range, which can prevent usage of cables that can support,
for example, up to 25GbE.

Rather than checking that an active or passive cable supports a specific
range, only check for a minimum supported speed.

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 | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
index 8b66def631..0ad5b4ba85 100644
--- a/drivers/net/axgbe/axgbe_phy_impl.c
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -117,9 +117,7 @@ enum axgbe_sfp_speed {
 
 #define AXGBE_SFP_BASE_BR			12
 #define AXGBE_SFP_BASE_BR_1GBE_MIN		0x0a
-#define AXGBE_SFP_BASE_BR_1GBE_MAX		0x0d
 #define AXGBE_SFP_BASE_BR_10GBE_MIN		0x64
-#define AXGBE_SFP_BASE_BR_10GBE_MAX		0x68
 
 #define AXGBE_SFP_BASE_CU_CABLE_LEN		18
 
@@ -536,25 +534,22 @@ static void axgbe_phy_sfp_phy_settings(struct axgbe_port *pdata)
 static bool axgbe_phy_sfp_bit_rate(struct axgbe_sfp_eeprom *sfp_eeprom,
 				   enum axgbe_sfp_speed sfp_speed)
 {
-	u8 *sfp_base, min, max;
+	u8 *sfp_base, min;
 
 	sfp_base = sfp_eeprom->base;
 
 	switch (sfp_speed) {
 	case AXGBE_SFP_SPEED_1000:
 		min = AXGBE_SFP_BASE_BR_1GBE_MIN;
-		max = AXGBE_SFP_BASE_BR_1GBE_MAX;
 		break;
 	case AXGBE_SFP_SPEED_10000:
 		min = AXGBE_SFP_BASE_BR_10GBE_MIN;
-		max = AXGBE_SFP_BASE_BR_10GBE_MAX;
 		break;
 	default:
 		return false;
 	}
 
-	return ((sfp_base[AXGBE_SFP_BASE_BR] >= min) &&
-		(sfp_base[AXGBE_SFP_BASE_BR] <= max));
+	return sfp_base[AXGBE_SFP_BASE_BR] >= min;
 }
 
 static void axgbe_phy_sfp_external_phy(struct axgbe_port *pdata)
-- 
2.34.1


  parent reply	other threads:[~2024-05-07 12:44 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
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   ` Venkat Kumar Ande [this message]
2024-05-20 10:42     ` [PATCH v2 10/25] net/axgbe: check only the minimum speed for cables 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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