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This fixes the handling of some FS copper SFP modules using the RollBall protocol and needing some extra treatment. Signed-off-by: Martin Schiller <ms@dev.tdt.de>
78 lines
2.8 KiB
Diff
78 lines
2.8 KiB
Diff
From cd4a32e60061789676f7f018a94fcc9ec56732a0 Mon Sep 17 00:00:00 2001
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From: Marek Behún <kabel@kernel.org>
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Date: Tue, 23 Apr 2024 10:50:39 +0200
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Subject: net: sfp: enhance quirk for Fibrestore 2.5G copper SFP module
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Enhance the quirk for Fibrestore 2.5G copper SFP module. The original
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commit e27aca3760c0 ("net: sfp: add quirk for FS's 2.5G copper SFP")
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introducing the quirk says that the PHY is inaccessible, but that is
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not true.
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The module uses Rollball protocol to talk to the PHY, and needs a 4
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second wait before probing it, same as FS 10G module.
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The PHY inside the module is Realtek RTL8221B-VB-CG PHY. The realtek
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driver recently gained support to set it up via clause 45 accesses.
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Signed-off-by: Marek Behún <kabel@kernel.org>
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Reviewed-by: Jiri Pirko <jiri@nvidia.com>
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Link: https://lore.kernel.org/r/20240423085039.26957-2-kabel@kernel.org
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/phy/sfp.c | 18 ++++++++++++------
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1 file changed, 12 insertions(+), 6 deletions(-)
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--- a/drivers/net/phy/sfp.c
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+++ b/drivers/net/phy/sfp.c
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@@ -370,18 +370,23 @@ static void sfp_fixup_rollball(struct sf
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sfp->phy_t_retry = msecs_to_jiffies(1000);
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}
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-static void sfp_fixup_fs_10gt(struct sfp *sfp)
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+static void sfp_fixup_fs_2_5gt(struct sfp *sfp)
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{
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- sfp_fixup_10gbaset_30m(sfp);
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sfp_fixup_rollball(sfp);
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- /* The RollBall fixup is not enough for FS modules, the AQR chip inside
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+ /* The RollBall fixup is not enough for FS modules, the PHY chip inside
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* them does not return 0xffff for PHY ID registers in all MMDs for the
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* while initializing. They need a 4 second wait before accessing PHY.
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*/
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sfp->module_t_wait = msecs_to_jiffies(4000);
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}
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+static void sfp_fixup_fs_10gt(struct sfp *sfp)
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+{
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+ sfp_fixup_10gbaset_30m(sfp);
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+ sfp_fixup_fs_2_5gt(sfp);
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+}
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+
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static void sfp_fixup_halny_gsfp(struct sfp *sfp)
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{
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/* Ignore the TX_FAULT and LOS signals on this module.
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@@ -459,6 +464,10 @@ static const struct sfp_quirk sfp_quirks
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// PHY.
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SFP_QUIRK_F("FS", "SFP-10G-T", sfp_fixup_fs_10gt),
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+ // Fiberstore SFP-2.5G-T uses Rollball protocol to talk to the PHY and
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+ // needs 4 sec wait before probing the PHY.
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+ SFP_QUIRK_F("FS", "SFP-2.5G-T", sfp_fixup_fs_2_5gt),
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+
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// Fiberstore GPON-ONU-34-20BI can operate at 2500base-X, but report 1.2GBd
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// NRZ in their EEPROM
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SFP_QUIRK("FS", "GPON-ONU-34-20BI", sfp_quirk_2500basex,
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@@ -475,9 +484,6 @@ static const struct sfp_quirk sfp_quirks
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SFP_QUIRK("HUAWEI", "MA5671A", sfp_quirk_2500basex,
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sfp_fixup_ignore_tx_fault),
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- // FS 2.5G Base-T
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- SFP_QUIRK_M("FS", "SFP-2.5G-T", sfp_quirk_oem_2_5g),
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-
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// Lantech 8330-262D-E can operate at 2500base-X, but incorrectly report
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// 2500MBd NRZ in their EEPROM
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SFP_QUIRK_M("Lantech", "8330-262D-E", sfp_quirk_2500basex),
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