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It was reported on Turris forum [1] that HALNy HL-GSFP module does not work as it should with kernel 5.15. Russell King prepared this patch series, which fixes broken SFP module to work. Compile and run tested with Turris Omnia. [1] https://forum.turris.cz/t/hbl-turrisos-6-0-alpha2-halny-hl-gsfp-sfp-gpon-stick-problems/17547 Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
80 lines
2.6 KiB
Diff
80 lines
2.6 KiB
Diff
From 9a84d699ddde0d4e272aa919ad8fd50271a3f932 Mon Sep 17 00:00:00 2001
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From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
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Date: Fri, 26 Aug 2022 08:48:20 +0100
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Subject: [PATCH 5/6] net: sfp: redo soft state polling
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Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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---
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drivers/net/phy/sfp.c | 35 ++++++++++++++++++++++++-----------
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1 file changed, 24 insertions(+), 11 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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@@ -234,6 +234,7 @@ struct sfp {
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bool need_poll;
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struct mutex st_mutex; /* Protects state */
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+ unsigned int state_ignore_hw_mask;
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unsigned int state_soft_mask;
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unsigned int state;
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struct delayed_work poll;
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@@ -623,17 +624,18 @@ static void sfp_soft_set_state(struct sf
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static void sfp_soft_start_poll(struct sfp *sfp)
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{
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const struct sfp_eeprom_id *id = &sfp->id;
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+ unsigned int mask = 0;
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sfp->state_soft_mask = 0;
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- if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE &&
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- !sfp->gpio[GPIO_TX_DISABLE])
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- sfp->state_soft_mask |= SFP_F_TX_DISABLE;
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- if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT &&
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- !sfp->gpio[GPIO_TX_FAULT])
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- sfp->state_soft_mask |= SFP_F_TX_FAULT;
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- if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS &&
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- !sfp->gpio[GPIO_LOS])
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- sfp->state_soft_mask |= SFP_F_LOS;
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+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE)
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+ mask |= SFP_F_TX_DISABLE;
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+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT)
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+ mask |= SFP_F_TX_FAULT;
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+ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS)
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+ mask |= SFP_F_LOS;
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+
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+ // Poll the soft state for hardware pins we want to ignore
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+ sfp->state_soft_mask = sfp->state_ignore_hw_mask & mask;
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if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) &&
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!sfp->need_poll)
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@@ -647,10 +649,12 @@ static void sfp_soft_stop_poll(struct sf
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static unsigned int sfp_get_state(struct sfp *sfp)
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{
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+ unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT);
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unsigned int state = sfp->get_state(sfp);
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- if (state & SFP_F_PRESENT &&
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- sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT))
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+ state &= ~sfp->state_ignore_hw_mask;
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+
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+ if (state & SFP_F_PRESENT && soft)
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state |= sfp_soft_get_state(sfp);
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return state;
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@@ -2064,6 +2068,15 @@ static int sfp_sm_mod_probe(struct sfp *
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if (ret < 0)
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return ret;
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+ /* Initialise state bits to ignore from hardware */
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+ sfp->state_ignore_hw_mask = 0;
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+ if (!sfp->gpio[GPIO_TX_DISABLE])
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+ sfp->state_ignore_hw_mask |= SFP_F_TX_DISABLE;
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+ if (!sfp->gpio[GPIO_TX_FAULT])
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+ sfp->state_ignore_hw_mask |= SFP_F_TX_FAULT;
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+ if (!sfp->gpio[GPIO_LOS])
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+ sfp->state_ignore_hw_mask |= SFP_F_LOS;
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+
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sfp->module_t_start_up = T_START_UP;
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sfp->tx_fault_ignore = false;
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