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64 lines
2.3 KiB
Diff
64 lines
2.3 KiB
Diff
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From 7cc39a6bedbd85f3ff7e16845f310e4ce8d9833f Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Tue, 6 Sep 2022 00:31:19 +0100
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Subject: [PATCH] net: sfp: add quirk for ATS SFP-GE-T 1000Base-TX module
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To: netdev@vger.kernel.org,
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linux-kernel@vger.kernel.org,
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Russell King <linux@armlinux.org.uk>,
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Andrew Lunn <andrew@lunn.ch>,
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Heiner Kallweit <hkallweit1@gmail.com>
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Cc: David S. Miller <davem@davemloft.net>,
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Eric Dumazet <edumazet@google.com>,
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Jakub Kicinski <kuba@kernel.org>,
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Paolo Abeni <pabeni@redhat.com>,
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Josef Schlehofer <pepe.schlehofer@gmail.com>
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This copper module comes with broken TX_FAULT indicator which must be
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ignored for it to work. Implement ignoring TX_FAULT state bit also
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during reset/insertion and mute the warning telling the user that the
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module indicates TX_FAULT.
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Co-authored-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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drivers/net/phy/sfp.c | 14 +++++++++++---
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1 file changed, 11 insertions(+), 3 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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@@ -409,6 +409,9 @@ 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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+ // OEM SFP-GE-T is 1000Base-T module
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+ SFP_QUIRK_F("OEM", "SFP-GE-T", sfp_fixup_ignore_tx_fault),
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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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@@ -2344,7 +2347,8 @@ static void sfp_sm_main(struct sfp *sfp,
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* or t_start_up, so assume there is a fault.
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*/
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sfp_sm_fault(sfp, SFP_S_INIT_TX_FAULT,
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- sfp->sm_fault_retries == N_FAULT_INIT);
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+ !sfp->tx_fault_ignore &&
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+ (sfp->sm_fault_retries == N_FAULT_INIT));
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} else if (event == SFP_E_TIMEOUT || event == SFP_E_TX_CLEAR) {
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init_done:
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/* Create mdiobus and start trying for PHY */
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@@ -2578,10 +2582,12 @@ static void sfp_check_state(struct sfp *
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mutex_lock(&sfp->st_mutex);
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state = sfp_get_state(sfp);
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changed = state ^ sfp->state;
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- if (sfp->tx_fault_ignore)
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+ if (sfp->tx_fault_ignore) {
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changed &= SFP_F_PRESENT | SFP_F_LOS;
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- else
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+ state &= ~SFP_F_TX_FAULT;
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+ } else {
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changed &= SFP_F_PRESENT | SFP_F_LOS | SFP_F_TX_FAULT;
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+ }
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for (i = 0; i < GPIO_MAX; i++)
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if (changed & BIT(i))
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