diff options
Diffstat (limited to 'nixos/modules/kernel-patches/0032-net-sfp-redo-soft-state-polling.patch')
| -rw-r--r-- | nixos/modules/kernel-patches/0032-net-sfp-redo-soft-state-polling.patch | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/nixos/modules/kernel-patches/0032-net-sfp-redo-soft-state-polling.patch b/nixos/modules/kernel-patches/0032-net-sfp-redo-soft-state-polling.patch new file mode 100644 index 0000000..0c7a4b1 --- /dev/null +++ b/nixos/modules/kernel-patches/0032-net-sfp-redo-soft-state-polling.patch @@ -0,0 +1,84 @@ +From 5bec210c1c4677ecef5962138c75cb514a079661 Mon Sep 17 00:00:00 2001 +From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk> +Date: Fri, 26 Aug 2022 08:48:20 +0100 +Subject: [PATCH 32/96] net: sfp: redo soft state polling + +Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> +--- + drivers/net/phy/sfp.c | 35 ++++++++++++++++++++++++----------- + 1 file changed, 24 insertions(+), 11 deletions(-) + +diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c +index 404ea1ba457a..b213e9c2e456 100644 +--- a/drivers/net/phy/sfp.c ++++ b/drivers/net/phy/sfp.c +@@ -234,6 +234,7 @@ struct sfp { + bool need_poll; + + struct mutex st_mutex; /* Protects state */ ++ unsigned int state_ignore_hw_mask; + unsigned int state_soft_mask; + unsigned int state; + struct delayed_work poll; +@@ -600,17 +601,18 @@ static void sfp_soft_set_state(struct sfp *sfp, unsigned int state) + static void sfp_soft_start_poll(struct sfp *sfp) + { + const struct sfp_eeprom_id *id = &sfp->id; ++ unsigned int mask = 0; + + sfp->state_soft_mask = 0; +- if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE && +- !sfp->gpio[GPIO_TX_DISABLE]) +- sfp->state_soft_mask |= SFP_F_TX_DISABLE; +- if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT && +- !sfp->gpio[GPIO_TX_FAULT]) +- sfp->state_soft_mask |= SFP_F_TX_FAULT; +- if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS && +- !sfp->gpio[GPIO_LOS]) +- sfp->state_soft_mask |= SFP_F_LOS; ++ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_DISABLE) ++ mask |= SFP_F_TX_DISABLE; ++ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_TX_FAULT) ++ mask |= SFP_F_TX_FAULT; ++ if (id->ext.enhopts & SFP_ENHOPTS_SOFT_RX_LOS) ++ mask |= SFP_F_LOS; ++ ++ // Poll the soft state for hardware pins we want to ignore ++ sfp->state_soft_mask = sfp->state_ignore_hw_mask & mask; + + if (sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT) && + !sfp->need_poll) +@@ -624,10 +626,12 @@ static void sfp_soft_stop_poll(struct sfp *sfp) + + static unsigned int sfp_get_state(struct sfp *sfp) + { ++ unsigned int soft = sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT); + unsigned int state = sfp->get_state(sfp); + +- if (state & SFP_F_PRESENT && +- sfp->state_soft_mask & (SFP_F_LOS | SFP_F_TX_FAULT)) ++ state &= ~sfp->state_ignore_hw_mask; ++ ++ if (state & SFP_F_PRESENT && soft) + state |= sfp_soft_get_state(sfp); + + return state; +@@ -2052,6 +2056,15 @@ static int sfp_sm_mod_probe(struct sfp *sfp, bool report) + if (ret < 0) + return ret; + ++ /* Initialise state bits to ignore from hardware */ ++ sfp->state_ignore_hw_mask = 0; ++ if (!sfp->gpio[GPIO_TX_DISABLE]) ++ sfp->state_ignore_hw_mask |= SFP_F_TX_DISABLE; ++ if (!sfp->gpio[GPIO_TX_FAULT]) ++ sfp->state_ignore_hw_mask |= SFP_F_TX_FAULT; ++ if (!sfp->gpio[GPIO_LOS]) ++ sfp->state_ignore_hw_mask |= SFP_F_LOS; ++ + sfp->module_t_start_up = T_START_UP; + + sfp->tx_fault_ignore = false; +-- +2.37.2 + |