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3887a55909
Removed upstreamed: backport-5.15/430-v6.3-ubi-Fix-failure-attaching-when-vid_hdr-offset-equals.patch[1] backport-5.15/612-v6.3-skbuff-Fix-a-race-between-coalescing-and-releasing-S.patch[2] All other patches automatically rebased. 1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.108&id=85d7a7044b759d865d10395a357632af00de5867 2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.108&id=906a6689bb0191ad2a44131a3377006aa098af59 Build system: x86_64 Build-tested: bcm2711/RPi4B, ramips/tplink_archer-a6-v3, filogic/xiaomi_redmi-router-ax6000-ubootmod Run-tested: bcm2711/RPi4B, ramips/tplink_archer-a6-v3, filogic/xiaomi_redmi-router-ax6000-ubootmod Signed-off-by: John Audia <therealgraysky@proton.me>
99 lines
3.4 KiB
Diff
99 lines
3.4 KiB
Diff
From 8475c4b70b040f9d8cbc308100f2c4d865f810b3 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: Tue, 13 Sep 2022 20:06:27 +0100
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Subject: [PATCH 1/1] net: sfp: re-implement soft state polling setup
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Re-implement the decision making for soft state polling. Instead of
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generating the soft state mask in sfp_soft_start_poll() by looking at
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which GPIOs are available, record their availability in
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sfp_sm_mod_probe() in sfp->state_hw_mask.
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This will then allow us to clear bits in sfp->state_hw_mask in module
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specific quirks when the hardware signals should not be used, thereby
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allowing us to switch to using the software state polling.
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Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
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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 | 38 ++++++++++++++++++++++++++------------
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1 file changed, 26 insertions(+), 12 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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@@ -240,6 +240,7 @@ 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_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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@@ -505,17 +506,18 @@ 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_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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@@ -529,10 +531,11 @@ 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 state = sfp->get_state(sfp);
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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;
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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->get_state(sfp) & sfp->state_hw_mask;
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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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@@ -1942,6 +1945,15 @@ 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 use from hardware */
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+ sfp->state_hw_mask = SFP_F_PRESENT;
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+ if (sfp->gpio[GPIO_TX_DISABLE])
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+ sfp->state_hw_mask |= SFP_F_TX_DISABLE;
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+ if (sfp->gpio[GPIO_TX_FAULT])
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+ sfp->state_hw_mask |= SFP_F_TX_FAULT;
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+ if (sfp->gpio[GPIO_LOS])
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+ sfp->state_hw_mask |= SFP_F_LOS;
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+
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if (!memcmp(id.base.vendor_name, "ALCATELLUCENT ", 16) &&
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!memcmp(id.base.vendor_pn, "3FE46541AA ", 16))
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sfp->module_t_start_up = T_START_UP_BAD_GPON;
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@@ -2568,6 +2580,8 @@ static int sfp_probe(struct platform_dev
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return PTR_ERR(sfp->gpio[i]);
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}
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+ sfp->state_hw_mask = SFP_F_PRESENT;
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+
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sfp->get_state = sfp_gpio_get_state;
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sfp->set_state = sfp_gpio_set_state;
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